57081023969 has 2 divisors, whose sum is σ = 57081023970. Its totient is φ = 57081023968.

The previous prime is 57081023963. The next prime is 57081024001. The reversal of 57081023969 is 96932018075.

57081023969 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36764227600 + 20316796369 = 191740^2 + 142537^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57081023969 is a prime.

It is a super-2 number, since 2×57081023969² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (57081023963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28540511984 + 28540511985.

It is an arithmetic number, because the mean of its divisors is an integer number (28540511985).

Almost surely, 2^57081023969 is an apocalyptic number.

It is an amenable number.

57081023969 is a deficient number, since it is larger than the sum of its proper divisors (1).

57081023969 is an equidigital number, since it uses as much as digits as its factorization.

57081023969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 816480, while the sum is 50.

The spelling of 57081023969 in words is "fifty-seven billion, eighty-one million, twenty-three thousand, nine hundred sixty-nine".