57771968163 has 32 divisors (see below), whose sum is σ = 94823425536. Its totient is φ = 30467294208.

The previous prime is 57771968153. The next prime is 57771968171. The reversal of 57771968163 is 36186917775.

It is a Cunningham number, because it is equal to 240358²-1.

It is not a de Polignac number, because 57771968163 - 2⁵ = 57771968131 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 57771968097 and 57771968106.

It is not an unprimeable number, because it can be changed into a prime (57771968153) 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, 1665331 + ... + 1699667.

It is an arithmetic number, because the mean of its divisors is an integer number (2963232048).

Almost surely, 2^57771968163 is an apocalyptic number.

57771968163 is a deficient number, since it is larger than the sum of its proper divisors (37051457373).

57771968163 is a wasteful number, since it uses less digits than its factorization.

57771968163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40523.

The product of its digits is 13335840, while the sum is 60.

The spelling of 57771968163 in words is "fifty-seven billion, seven hundred seventy-one million, nine hundred sixty-eight thousand, one hundred sixty-three".