68147038506 has 16 divisors (see below), whose sum is σ = 136297828800. Its totient is φ = 22715054208.

The previous prime is 68147038493. The next prime is 68147038511. The reversal of 68147038506 is 60583074186.

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, 116410 + ... + 387098.

It is an arithmetic number, because the mean of its divisors is an integer number (8518614300).

Almost surely, 2^68147038506 is an apocalyptic number.

68147038506 is an abundant number, since it is smaller than the sum of its proper divisors (68150790294).

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

68147038506 is a wasteful number, since it uses less digits than its factorization.

68147038506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312653.

The product of its (nonzero) digits is 967680, while the sum is 48.

The spelling of 68147038506 in words is "sixty-eight billion, one hundred forty-seven million, thirty-eight thousand, five hundred six".