68031437612 has 24 divisors (see below), whose sum is σ = 121609736640. Its totient is φ = 33286056320.

The previous prime is 68031437603. The next prime is 68031437623. The reversal of 68031437612 is 21673413086.

It is a self number, because there is not a number n which added to its sum of digits gives 68031437612.

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, 1140464 + ... + 1198632.

It is an arithmetic number, because the mean of its divisors is an integer number (5067072360).

Almost surely, 2^68031437612 is an apocalyptic number.

It is an amenable number.

68031437612 is a deficient number, since it is larger than the sum of its proper divisors (53578299028).

68031437612 is a wasteful number, since it uses less digits than its factorization.

68031437612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64441 (or 64439 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 41.

The spelling of 68031437612 in words is "sixty-eight billion, thirty-one million, four hundred thirty-seven thousand, six hundred twelve".