257085767370 has 64 divisors (see below), whose sum is σ = 652443724800. Its totient is φ = 64726540800.

The previous prime is 257085767363. The next prime is 257085767437. The reversal of 257085767370 is 73767580752.

It is a self number, because there is not a number n which added to its sum of digits gives 257085767370.

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 31 ways as a sum of consecutive naturals, for example, 3333045 + ... + 3409304.

It is an arithmetic number, because the mean of its divisors is an integer number (10194433200).

Almost surely, 2^257085767370 is an apocalyptic number.

257085767370 is an abundant number, since it is smaller than the sum of its proper divisors (395357957430).

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

257085767370 is a wasteful number, since it uses less digits than its factorization.

257085767370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6742431.

The product of its (nonzero) digits is 17287200, while the sum is 57.

The spelling of 257085767370 in words is "two hundred fifty-seven billion, eighty-five million, seven hundred sixty-seven thousand, three hundred seventy".