56988518399 has 8 divisors (see below), whose sum is σ = 58949824080. Its totient is φ = 55049374656.

The previous prime is 56988518351. The next prime is 56988518423. The reversal of 56988518399 is 99381588965.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56988518399 - 2⁸ = 56988518143 is a prime.

It is a super-3 number, since 3×56988518399³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56988518329) 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 7 ways as a sum of consecutive naturals, for example, 5535254 + ... + 5545539.

It is an arithmetic number, because the mean of its divisors is an integer number (7368728010).

Almost surely, 2^56988518399 is an apocalyptic number.

56988518399 is a deficient number, since it is larger than the sum of its proper divisors (1961305681).

56988518399 is a wasteful number, since it uses less digits than its factorization.

56988518399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11080969.

The product of its digits is 167961600, while the sum is 71.

The spelling of 56988518399 in words is "fifty-six billion, nine hundred eighty-eight million, five hundred eighteen thousand, three hundred ninety-nine".