257422692699 has 48 divisors (see below), whose sum is σ = 387177283584. Its totient is φ = 164635790400.

The previous prime is 257422692697. The next prime is 257422692719. The reversal of 257422692699 is 996296224752.

It is not a de Polignac number, because 257422692699 - 2¹ = 257422692697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (257422692691) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15605434 + ... + 15621920.

It is an arithmetic number, because the mean of its divisors is an integer number (8066193408).

Almost surely, 2^257422692699 is an apocalyptic number.

257422692699 is a deficient number, since it is larger than the sum of its proper divisors (129754590885).

257422692699 is a wasteful number, since it uses less digits than its factorization.

257422692699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17008 (or 17005 counting only the distinct ones).

The product of its digits is 58786560, while the sum is 63.

The spelling of 257422692699 in words is "two hundred fifty-seven billion, four hundred twenty-two million, six hundred ninety-two thousand, six hundred ninety-nine".