57771388081 has 16 divisors (see below), whose sum is σ = 63462155328. Its totient is φ = 52154726400.

The previous prime is 57771388057. The next prime is 57771388093. The reversal of 57771388081 is 18088317775.

It is a cyclic number.

It is not a de Polignac number, because 57771388081 - 2³⁵ = 23411649713 is a prime.

It is a super-2 number, since 2×57771388081² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (57771388481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1188405 + ... + 1236061.

It is an arithmetic number, because the mean of its divisors is an integer number (3966384708).

Almost surely, 2^57771388081 is an apocalyptic number.

It is an amenable number.

57771388081 is a deficient number, since it is larger than the sum of its proper divisors (5690767247).

57771388081 is a wasteful number, since it uses less digits than its factorization.

57771388081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48432.

The product of its (nonzero) digits is 2634240, while the sum is 55.

The spelling of 57771388081 in words is "fifty-seven billion, seven hundred seventy-one million, three hundred eighty-eight thousand, eighty-one".