57897056077 has 12 divisors (see below), whose sum is σ = 71311381020. Its totient is φ = 46706868096.

The previous prime is 57897056053. The next prime is 57897056081. The reversal of 57897056077 is 77065079875.

It can be written as a sum of positive squares in 2 ways, for example, as 42810092836 + 15086963241 = 206906^2 + 122829^2 .

It is not a de Polignac number, because 57897056077 - 2²³ = 57888667469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57897056017) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34751302 + ... + 34752967.

It is an arithmetic number, because the mean of its divisors is an integer number (5942615085).

Almost surely, 2^57897056077 is an apocalyptic number.

It is an amenable number.

57897056077 is a deficient number, since it is larger than the sum of its proper divisors (13414324943).

57897056077 is a wasteful number, since it uses less digits than its factorization.

57897056077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69504300 (or 69504293 counting only the distinct ones).

The product of its (nonzero) digits is 25930800, while the sum is 61.

The spelling of 57897056077 in words is "fifty-seven billion, eight hundred ninety-seven million, fifty-six thousand, seventy-seven".