56009997902859 has 48 divisors (see below), whose sum is σ = 102060176037120. Its totient is φ = 26857941042240.

The previous prime is 56009997902819. The next prime is 56009997902861. The reversal of 56009997902859 is 95820979990065.

It is a happy number.

It is not a de Polignac number, because 56009997902859 - 2⁷ = 56009997902731 is a prime.

It is a Smith number, since the sum of its digits (78) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (56009997902819) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1332218119 + ... + 1332260160.

It is an arithmetic number, because the mean of its divisors is an integer number (2126253667440).

Almost surely, 2^{56009997902859} is an apocalyptic number.

56009997902859 is a deficient number, since it is larger than the sum of its proper divisors (46050178134261).

56009997902859 is a wasteful number, since it uses less digits than its factorization.

56009997902859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2664478320 (or 2664478313 counting only the distinct ones).

The product of its (nonzero) digits is 992023200, while the sum is 78.

The spelling of 56009997902859 in words is "fifty-six trillion, nine billion, nine hundred ninety-seven million, nine hundred two thousand, eight hundred fifty-nine".