68738638026 has 32 divisors (see below), whose sum is σ = 144959592960. Its totient is φ = 21669937776.

The previous prime is 68738637997. The next prime is 68738638043. The reversal of 68738638026 is 62083683786.

It is a Harshad number since it is a multiple of its sum of digits (57).

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, 446686 + ... + 580521.

It is an arithmetic number, because the mean of its divisors is an integer number (4529987280).

Almost surely, 2^68738638026 is an apocalyptic number.

68738638026 is an abundant number, since it is smaller than the sum of its proper divisors (76220954934).

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

68738638026 is a wasteful number, since it uses less digits than its factorization.

68738638026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1027818.

The product of its (nonzero) digits is 13934592, while the sum is 57.

The spelling of 68738638026 in words is "sixty-eight billion, seven hundred thirty-eight million, six hundred thirty-eight thousand, twenty-six".