56878739736897 has 16 divisors (see below), whose sum is σ = 81675974278080. Its totient is φ = 35000613776832.

The previous prime is 56878739736881. The next prime is 56878739736943. The reversal of 56878739736897 is 79863793787865.

It is a happy number.

56878739736897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56878739736897 - 2⁴ = 56878739736881 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56878739736897.

It is not an unprimeable number, because it can be changed into a prime (56878739736817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34338822 + ... + 35957087.

It is an arithmetic number, because the mean of its divisors is an integer number (5104748392380).

Almost surely, 2^{56878739736897} is an apocalyptic number.

It is an amenable number.

56878739736897 is a deficient number, since it is larger than the sum of its proper divisors (24797234541183).

56878739736897 is a wasteful number, since it uses less digits than its factorization.

56878739736897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70316672.

The product of its digits is 161310320640, while the sum is 93.

The spelling of 56878739736897 in words is "fifty-six trillion, eight hundred seventy-eight billion, seven hundred thirty-nine million, seven hundred thirty-six thousand, eight hundred ninety-seven".