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68675541554 = 235951955127
BaseRepresentation
bin111111111101011000…
…011001101000110010
320120021010010222110002
4333331120121220302
52111121414312204
651314335110002
74650562320524
oct777530315062
9216233128402
1068675541554
1127141609914
1211387372302
136625c27b29
143476b69a14
151bbe1dd91e
hexffd619a32

68675541554 has 8 divisors (see below), whose sum is σ = 103016285568. Its totient is φ = 34336779700.

The previous prime is 68675541551. The next prime is 68675541577. The reversal of 68675541554 is 45514557686.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 68675541554.

It is not an unprimeable number, because it can be changed into a prime (68675541551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 405662 + ... + 549465.

It is an arithmetic number, because the mean of its divisors is an integer number (12877035696).

Almost surely, 268675541554 is an apocalyptic number.

68675541554 is a deficient number, since it is larger than the sum of its proper divisors (34340744014).

68675541554 is a wasteful number, since it uses less digits than its factorization.

68675541554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991080.

The product of its digits is 20160000, while the sum is 56.

The spelling of 68675541554 in words is "sixty-eight billion, six hundred seventy-five million, five hundred forty-one thousand, five hundred fifty-four".

Divisors: 1 2 35951 71902 955127 1910254 34337770777 68675541554