57644232047 has 2 divisors, whose sum is σ = 57644232048. Its totient is φ = 57644232046.

The previous prime is 57644231999. The next prime is 57644232053. The reversal of 57644232047 is 74023244675.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57644232047 - 2⁸ = 57644231791 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 57644231989 and 57644232007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57644232647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28822116023 + 28822116024.

It is an arithmetic number, because the mean of its divisors is an integer number (28822116024).

Almost surely, 2^57644232047 is an apocalyptic number.

57644232047 is a deficient number, since it is larger than the sum of its proper divisors (1).

57644232047 is an equidigital number, since it uses as much as digits as its factorization.

57644232047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1128960, while the sum is 44.

The spelling of 57644232047 in words is "fifty-seven billion, six hundred forty-four million, two hundred thirty-two thousand, forty-seven".