257295046907 has 2 divisors, whose sum is σ = 257295046908. Its totient is φ = 257295046906.

The previous prime is 257295046901. The next prime is 257295046951. The reversal of 257295046907 is 709640592752.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 257295046907 - 2⁶ = 257295046843 is a prime.

It is not a weakly prime, because it can be changed into another prime (257295046901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128647523453 + 128647523454.

It is an arithmetic number, because the mean of its divisors is an integer number (128647523454).

Almost surely, 2^257295046907 is an apocalyptic number.

257295046907 is a deficient number, since it is larger than the sum of its proper divisors (1).

257295046907 is an equidigital number, since it uses as much as digits as its factorization.

257295046907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9525600, while the sum is 56.

The spelling of 257295046907 in words is "two hundred fifty-seven billion, two hundred ninety-five million, forty-six thousand, nine hundred seven".