68691567290 has 16 divisors (see below), whose sum is σ = 125209946880. Its totient is φ = 27128821200.

The previous prime is 68691567283. The next prime is 68691567311. The reversal of 68691567290 is 9276519686.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43474886 + ... + 43476465.

It is an arithmetic number, because the mean of its divisors is an integer number (7825621680).

Almost surely, 2^68691567290 is an apocalyptic number.

68691567290 is a deficient number, since it is larger than the sum of its proper divisors (56518379590).

68691567290 is a wasteful number, since it uses less digits than its factorization.

68691567290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86951437.

The product of its (nonzero) digits is 9797760, while the sum is 59.

The spelling of 68691567290 in words is "sixty-eight billion, six hundred ninety-one million, five hundred sixty-seven thousand, two hundred ninety".