57944531969 has 2 divisors, whose sum is σ = 57944531970. Its totient is φ = 57944531968.

The previous prime is 57944531963. The next prime is 57944531989. The reversal of 57944531969 is 96913544975.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57942266944 + 2265025 = 240712^2 + 1505^2 .

It is a cyclic number.

It is not a de Polignac number, because 57944531969 - 2³² = 53649564673 is a prime.

It is a super-2 number, since 2×57944531969² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (57944531963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28972265984 + 28972265985.

It is an arithmetic number, because the mean of its divisors is an integer number (28972265985).

Almost surely, 2^57944531969 is an apocalyptic number.

It is an amenable number.

57944531969 is a deficient number, since it is larger than the sum of its proper divisors (1).

57944531969 is an equidigital number, since it uses as much as digits as its factorization.

57944531969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36741600, while the sum is 62.

The spelling of 57944531969 in words is "fifty-seven billion, nine hundred forty-four million, five hundred thirty-one thousand, nine hundred sixty-nine".