257135682674 has 16 divisors (see below), whose sum is σ = 415399440960. Its totient is φ = 118670460240.

The previous prime is 257135682667. The next prime is 257135682707. The reversal of 257135682674 is 476286531752.

It is a super-2 number, since 2×257135682674² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113219 + ... + 726009.

It is an arithmetic number, because the mean of its divisors is an integer number (25962465060).

Almost surely, 2^257135682674 is an apocalyptic number.

257135682674 is a deficient number, since it is larger than the sum of its proper divisors (158263758286).

257135682674 is a wasteful number, since it uses less digits than its factorization.

257135682674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628945.

The product of its digits is 16934400, while the sum is 56.

The spelling of 257135682674 in words is "two hundred fifty-seven billion, one hundred thirty-five million, six hundred eighty-two thousand, six hundred seventy-four".