257932361142 has 24 divisors (see below), whose sum is σ = 558868335480. Its totient is φ = 85975163520.

The previous prime is 257932361131. The next prime is 257932361153. The reversal of 257932361142 is 241163239752.

It is a happy number.

257932361142 is a `hidden beast` number, since 2 + 5 + 7 + 9 + 3 + 23 + 611 + 4 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (257932361131) and next prime (257932361153).

It is a super-2 number, since 2×257932361142² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 590017 + ... + 929507.

It is an arithmetic number, because the mean of its divisors is an integer number (23286180645).

Almost surely, 2^257932361142 is an apocalyptic number.

257932361142 is an abundant number, since it is smaller than the sum of its proper divisors (300935974338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

257932361142 is a wasteful number, since it uses less digits than its factorization.

257932361142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381708 (or 381705 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The spelling of 257932361142 in words is "two hundred fifty-seven billion, nine hundred thirty-two million, three hundred sixty-one thousand, one hundred forty-two".