68905296078510 has 64 divisors (see below), whose sum is σ = 168998789919744. Its totient is φ = 17972345654400.

The previous prime is 68905296078499. The next prime is 68905296078529. The reversal of 68905296078510 is 1587069250986.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13338361 + ... + 17768580.

It is an arithmetic number, because the mean of its divisors is an integer number (2640606092496).

Almost surely, 2^{68905296078510} is an apocalyptic number.

68905296078510 is an abundant number, since it is smaller than the sum of its proper divisors (100093493841234).

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

68905296078510 is a wasteful number, since it uses less digits than its factorization.

68905296078510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31108569.

The product of its (nonzero) digits is 65318400, while the sum is 66.

The spelling of 68905296078510 in words is "sixty-eight trillion, nine hundred five billion, two hundred ninety-six million, seventy-eight thousand, five hundred ten".