57516112171783 has 2 divisors, whose sum is σ = 57516112171784. Its totient is φ = 57516112171782.

The previous prime is 57516112171741. The next prime is 57516112171849. The reversal of 57516112171783 is 38717121161575.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57516112171783 - 2¹⁷ = 57516112040711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57516112171723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28758056085891 + 28758056085892.

It is an arithmetic number, because the mean of its divisors is an integer number (28758056085892).

Almost surely, 2^{57516112171783} is an apocalyptic number.

57516112171783 is a deficient number, since it is larger than the sum of its proper divisors (1).

57516112171783 is an equidigital number, since it uses as much as digits as its factorization.

57516112171783 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2469600, while the sum is 55.

The spelling of 57516112171783 in words is "fifty-seven trillion, five hundred sixteen billion, one hundred twelve million, one hundred seventy-one thousand, seven hundred eighty-three".