56787430511 has 32 divisors (see below), whose sum is σ = 68243865600. Its totient is φ = 46225831680.

The previous prime is 56787430459. The next prime is 56787430519. The reversal of 56787430511 is 11503478765.

It is not a de Polignac number, because 56787430511 - 2³⁴ = 39607561327 is a prime.

It is a super-2 number, since 2×56787430511² (a number of 22 digits) contains 22 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 (56787430519) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5611346 + ... + 5621456.

It is an arithmetic number, because the mean of its divisors is an integer number (2132620800).

Almost surely, 2^56787430511 is an apocalyptic number.

56787430511 is a deficient number, since it is larger than the sum of its proper divisors (11456435089).

56787430511 is a wasteful number, since it uses less digits than its factorization.

56787430511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10599.

The product of its (nonzero) digits is 705600, while the sum is 47.

The spelling of 56787430511 in words is "fifty-six billion, seven hundred eighty-seven million, four hundred thirty thousand, five hundred eleven".