57460627981 has 2 divisors, whose sum is σ = 57460627982. Its totient is φ = 57460627980.

The previous prime is 57460627957. The next prime is 57460628011. The reversal of 57460627981 is 18972606475.

57460627981 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., 50288062500 + 7172565481 = 224250^2 + 84691^2 .

It is a cyclic number.

It is not a de Polignac number, because 57460627981 - 2¹¹ = 57460625933 is a prime.

It is a super-2 number, since 2×57460627981² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57460622981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28730313990 + 28730313991.

It is an arithmetic number, because the mean of its divisors is an integer number (28730313991).

Almost surely, 2^57460627981 is an apocalyptic number.

It is an amenable number.

57460627981 is a deficient number, since it is larger than the sum of its proper divisors (1).

57460627981 is an equidigital number, since it uses as much as digits as its factorization.

57460627981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5080320, while the sum is 55.

The spelling of 57460627981 in words is "fifty-seven billion, four hundred sixty million, six hundred twenty-seven thousand, nine hundred eighty-one".