57057811963 has 2 divisors, whose sum is σ = 57057811964. Its totient is φ = 57057811962.

The previous prime is 57057811961. The next prime is 57057812017. The reversal of 57057811963 is 36911875075.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57057811963 - 2¹ = 57057811961 is a prime.

Together with 57057811961, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 57057811963.

It is not a weakly prime, because it can be changed into another prime (57057811961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28528905981 + 28528905982.

It is an arithmetic number, because the mean of its divisors is an integer number (28528905982).

Almost surely, 2^57057811963 is an apocalyptic number.

57057811963 is a deficient number, since it is larger than the sum of its proper divisors (1).

57057811963 is an equidigital number, since it uses as much as digits as its factorization.

57057811963 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1587600, while the sum is 52.

The spelling of 57057811963 in words is "fifty-seven billion, fifty-seven million, eight hundred eleven thousand, nine hundred sixty-three".