56978347708 has 6 divisors (see below), whose sum is σ = 99712108496. Its totient is φ = 28489173852.

The previous prime is 56978347693. The next prime is 56978347709. The reversal of 56978347708 is 80774387965.

It is a self number, because there is not a number n which added to its sum of digits gives 56978347708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56978347709) by changing a digit.

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 as a sum of consecutive naturals, namely, 7122293460 + ... + 7122293467.

Almost surely, 2^56978347708 is an apocalyptic number.

It is an amenable number.

56978347708 is a deficient number, since it is larger than the sum of its proper divisors (42733760788).

56978347708 is a wasteful number, since it uses less digits than its factorization.

56978347708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14244586931 (or 14244586929 counting only the distinct ones).

The product of its (nonzero) digits is 71124480, while the sum is 64.

The spelling of 56978347708 in words is "fifty-six billion, nine hundred seventy-eight million, three hundred forty-seven thousand, seven hundred eight".