257740105072142 has 32 divisors (see below), whose sum is σ = 482069132916480. Its totient is φ = 100405376153280.

The previous prime is 257740105072129. The next prime is 257740105072159. The reversal of 257740105072142 is 241270501047752.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105847292 + ... + 108254927.

It is an arithmetic number, because the mean of its divisors is an integer number (15064660403640).

Almost surely, 2^{257740105072142} is an apocalyptic number.

257740105072142 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

257740105072142 is a deficient number, since it is larger than the sum of its proper divisors (224329027844338).

257740105072142 is a wasteful number, since it uses less digits than its factorization.

257740105072142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214110056.

The product of its (nonzero) digits is 1097600, while the sum is 47.

The spelling of 257740105072142 in words is "two hundred fifty-seven trillion, seven hundred forty billion, one hundred five million, seventy-two thousand, one hundred forty-two".