68630715510 has 32 divisors (see below), whose sum is σ = 188244248832. Its totient is φ = 15687020640.

The previous prime is 68630715443. The next prime is 68630715529. The reversal of 68630715510 is 1551703686.

It is a super-2 number, since 2×68630715510² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163406256 + ... + 163406675.

It is an arithmetic number, because the mean of its divisors is an integer number (5882632776).

Almost surely, 2^68630715510 is an apocalyptic number.

68630715510 is an abundant number, since it is smaller than the sum of its proper divisors (119613533322).

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

68630715510 is a wasteful number, since it uses less digits than its factorization.

68630715510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326812948.

The product of its (nonzero) digits is 151200, while the sum is 42.

The spelling of 68630715510 in words is "sixty-eight billion, six hundred thirty million, seven hundred fifteen thousand, five hundred ten".