56977190269 has 2 divisors, whose sum is σ = 56977190270. Its totient is φ = 56977190268.

The previous prime is 56977190219. The next prime is 56977190273. The reversal of 56977190269 is 96209177965.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52127739225 + 4849451044 = 228315^2 + 69638^2 .

It is a cyclic number.

It is not a de Polignac number, because 56977190269 - 2²¹ = 56975093117 is a prime.

It is a super-2 number, since 2×56977190269² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56977190219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28488595134 + 28488595135.

It is an arithmetic number, because the mean of its divisors is an integer number (28488595135).

Almost surely, 2^56977190269 is an apocalyptic number.

It is an amenable number.

56977190269 is a deficient number, since it is larger than the sum of its proper divisors (1).

56977190269 is an equidigital number, since it uses as much as digits as its factorization.

56977190269 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12859560, while the sum is 61.

The spelling of 56977190269 in words is "fifty-six billion, nine hundred seventy-seven million, one hundred ninety thousand, two hundred sixty-nine".