68501938356 has 48 divisors (see below), whose sum is σ = 180509071680. Its totient is φ = 22459649760.

The previous prime is 68501938331. The next prime is 68501938367. The reversal of 68501938356 is 65383910586.

68501938356 is a `hidden beast` number, since 6 + 8 + 501 + 9 + 3 + 83 + 56 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5192406 + ... + 5205581.

It is an arithmetic number, because the mean of its divisors is an integer number (3760605660).

Almost surely, 2^68501938356 is an apocalyptic number.

It is an amenable number.

68501938356 is an abundant number, since it is smaller than the sum of its proper divisors (112007133324).

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

68501938356 is a wasteful number, since it uses less digits than its factorization.

68501938356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10398061 (or 10398053 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 54.

The spelling of 68501938356 in words is "sixty-eight billion, five hundred one million, nine hundred thirty-eight thousand, three hundred fifty-six".