31450266457 has 2 divisors, whose sum is σ = 31450266458. Its totient is φ = 31450266456.

The previous prime is 31450266433. The next prime is 31450266461. The reversal of 31450266457 is 75466205413.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30558885721 + 891380736 = 174811^2 + 29856^2 .

It is a cyclic number.

It is not a de Polignac number, because 31450266457 - 2⁷ = 31450266329 is a prime.

It is not a weakly prime, because it can be changed into another prime (31450266487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15725133228 + 15725133229.

It is an arithmetic number, because the mean of its divisors is an integer number (15725133229).

Almost surely, 2^31450266457 is an apocalyptic number.

It is an amenable number.

31450266457 is a deficient number, since it is larger than the sum of its proper divisors (1).

31450266457 is an equidigital number, since it uses as much as digits as its factorization.

31450266457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 604800, while the sum is 43.

The spelling of 31450266457 in words is "thirty-one billion, four hundred fifty million, two hundred sixty-six thousand, four hundred fifty-seven".