57426323281 has 2 divisors, whose sum is σ = 57426323282. Its totient is φ = 57426323280.

The previous prime is 57426323261. The next prime is 57426323321. The reversal of 57426323281 is 18232362475.

57426323281 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., 56026890000 + 1399433281 = 236700^2 + 37409^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57426323281 is a prime.

It is a super-2 number, since 2×57426323281² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (57426323231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28713161640 + 28713161641.

It is an arithmetic number, because the mean of its divisors is an integer number (28713161641).

Almost surely, 2^57426323281 is an apocalyptic number.

It is an amenable number.

57426323281 is a deficient number, since it is larger than the sum of its proper divisors (1).

57426323281 is an equidigital number, since it uses as much as digits as its factorization.

57426323281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 483840, while the sum is 43.

The spelling of 57426323281 in words is "fifty-seven billion, four hundred twenty-six million, three hundred twenty-three thousand, two hundred eighty-one".