257192984683 has 32 divisors (see below), whose sum is σ = 285545336832. Its totient is φ = 230569804800.

The previous prime is 257192984681. The next prime is 257192984687. The reversal of 257192984683 is 386489291752.

It is a cyclic number.

It is not a de Polignac number, because 257192984683 - 2¹ = 257192984681 is a prime.

It is a super-2 number, since 2×257192984683² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (257192984681) 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, 19344268 + ... + 19357558.

It is an arithmetic number, because the mean of its divisors is an integer number (8923291776).

Almost surely, 2^257192984683 is an apocalyptic number.

257192984683 is a deficient number, since it is larger than the sum of its proper divisors (28352352149).

257192984683 is a wasteful number, since it uses less digits than its factorization.

257192984683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13915.

The product of its digits is 52254720, while the sum is 64.

The spelling of 257192984683 in words is "two hundred fifty-seven billion, one hundred ninety-two million, nine hundred eighty-four thousand, six hundred eighty-three".