257276873451 has 32 divisors (see below), whose sum is σ = 372612683520. Its totient is φ = 156962678400.

The previous prime is 257276873449. The next prime is 257276873459. The reversal of 257276873451 is 154378672752.

It is a happy number.

It is not a de Polignac number, because 257276873451 - 2¹ = 257276873449 is a prime.

It is a super-2 number, since 2×257276873451² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 257276873391 and 257276873400.

It is not an unprimeable number, because it can be changed into a prime (257276873459) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2255041 + ... + 2366381.

It is an arithmetic number, because the mean of its divisors is an integer number (11644146360).

Almost surely, 2^257276873451 is an apocalyptic number.

257276873451 is a deficient number, since it is larger than the sum of its proper divisors (115335810069).

257276873451 is a wasteful number, since it uses less digits than its factorization.

257276873451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111867.

The product of its digits is 19756800, while the sum is 57.

The spelling of 257276873451 in words is "two hundred fifty-seven billion, two hundred seventy-six million, eight hundred seventy-three thousand, four hundred fifty-one".