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68190955003458 = 235731837790273
BaseRepresentation
bin11111000000100111100011…
…01001100101111001000010
322221102222202220022011200000
433200103301221211321002
532414220033440102313
6401010254154540430
720235430301622450
oct1740236151457102
9287388686264600
1068190955003458
111a800692401791
127793a44a37716
132c084c18b8651
1412ba661acb9d0
157d3c0ad73673
hex3e04f1a65e42

68190955003458 has 192 divisors, whose sum is σ = 182934080888832. Its totient is φ = 18627475184640.

The previous prime is 68190955003351. The next prime is 68190955003477. The reversal of 68190955003458 is 85430055909186.

68190955003458 is a `hidden beast` number, since 6 + 8 + 1 + 9 + 0 + 95 + 500 + 34 + 5 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 68190955003395 and 68190955003404.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4858210 + ... + 12648482.

It is an arithmetic number, because the mean of its divisors is an integer number (952781671296).

Almost surely, 268190955003458 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68190955003458, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91467040444416).

68190955003458 is an abundant number, since it is smaller than the sum of its proper divisors (114743125885374).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68190955003458 is a wasteful number, since it uses less digits than its factorization.

68190955003458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7790411 (or 7790399 counting only the distinct ones).

The product of its (nonzero) digits is 46656000, while the sum is 63.

The spelling of 68190955003458 in words is "sixty-eight trillion, one hundred ninety billion, nine hundred fifty-five million, three thousand, four hundred fifty-eight".