57980790887 has 4 divisors (see below), whose sum is σ = 61032411480. Its totient is φ = 54929170296.

The previous prime is 57980790761. The next prime is 57980790899. The reversal of 57980790887 is 78809708975.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57980790887 is a prime.

It is a super-2 number, since 2×57980790887² (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 (57980750887) 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 3 ways as a sum of consecutive naturals, for example, 1525810268 + ... + 1525810305.

It is an arithmetic number, because the mean of its divisors is an integer number (15258102870).

Almost surely, 2^57980790887 is an apocalyptic number.

57980790887 is a deficient number, since it is larger than the sum of its proper divisors (3051620593).

57980790887 is a wasteful number, since it uses less digits than its factorization.

57980790887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3051620592.

The product of its (nonzero) digits is 71124480, while the sum is 68.

The spelling of 57980790887 in words is "fifty-seven billion, nine hundred eighty million, seven hundred ninety thousand, eight hundred eighty-seven".