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68091024841 = 790131079251
BaseRepresentation
bin111111011010100010…
…101001010111001001
320111202101021110020221
4333122202221113021
52103422300243331
651140334550041
74630234106260
oct773242512711
9214671243227
1068091024841
1126971676854
1211243668321
136561ac0858
14341d2935d7
151b87c2d711
hexfda8a95c9

68091024841 has 8 divisors (see below), whose sum is σ = 77827020224. Its totient is φ = 58357206000.

The previous prime is 68091024839. The next prime is 68091024871. The reversal of 68091024841 is 14842019086.

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

It is a cyclic number.

It is not a de Polignac number, because 68091024841 - 21 = 68091024839 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68091024811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 476535 + ... + 602716.

It is an arithmetic number, because the mean of its divisors is an integer number (9728377528).

Almost surely, 268091024841 is an apocalyptic number.

It is an amenable number.

68091024841 is a deficient number, since it is larger than the sum of its proper divisors (9735995383).

68091024841 is a wasteful number, since it uses less digits than its factorization.

68091024841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1088271.

The product of its (nonzero) digits is 110592, while the sum is 43.

The spelling of 68091024841 in words is "sixty-eight billion, ninety-one million, twenty-four thousand, eight hundred forty-one".

Divisors: 1 7 9013 63091 1079251 7554757 9727289263 68091024841