57518140891 has 2 divisors, whose sum is σ = 57518140892. Its totient is φ = 57518140890.

The previous prime is 57518140879. The next prime is 57518140943. The reversal of 57518140891 is 19804181575.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57518140891 - 2²³ = 57509752283 is a prime.

It is not a weakly prime, because it can be changed into another prime (57518170891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28759070445 + 28759070446.

It is an arithmetic number, because the mean of its divisors is an integer number (28759070446).

Almost surely, 2^57518140891 is an apocalyptic number.

57518140891 is a deficient number, since it is larger than the sum of its proper divisors (1).

57518140891 is an equidigital number, since it uses as much as digits as its factorization.

57518140891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 403200, while the sum is 49.

The spelling of 57518140891 in words is "fifty-seven billion, five hundred eighteen million, one hundred forty thousand, eight hundred ninety-one".