257013689798 has 16 divisors (see below), whose sum is σ = 389912869584. Its totient is φ = 127046493600.

The previous prime is 257013689759. The next prime is 257013689809. The reversal of 257013689798 is 897986310752.

257013689798 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 802940 + ... + 1076447.

It is an arithmetic number, because the mean of its divisors is an integer number (24369554349).

Almost surely, 2^257013689798 is an apocalyptic number.

257013689798 is a deficient number, since it is larger than the sum of its proper divisors (132899179786).

257013689798 is a wasteful number, since it uses less digits than its factorization.

257013689798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1880167.

The product of its (nonzero) digits is 45722880, while the sum is 65.

The spelling of 257013689798 in words is "two hundred fifty-seven billion, thirteen million, six hundred eighty-nine thousand, seven hundred ninety-eight".