56809956408 has 16 divisors (see below), whose sum is σ = 142024891080. Its totient is φ = 18936652128.

The previous prime is 56809956389. The next prime is 56809956439. The reversal of 56809956408 is 80465990865.

It is a super-2 number, since 2×56809956408² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1183540735 + ... + 1183540782.

Almost surely, 2^56809956408 is an apocalyptic number.

It is an amenable number.

56809956408 is an abundant number, since it is smaller than the sum of its proper divisors (85214934672).

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

56809956408 is a wasteful number, since it uses less digits than its factorization.

56809956408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2367081526 (or 2367081522 counting only the distinct ones).

The product of its (nonzero) digits is 18662400, while the sum is 60.

The spelling of 56809956408 in words is "fifty-six billion, eight hundred nine million, nine hundred fifty-six thousand, four hundred eight".