257776683045 has 32 divisors (see below), whose sum is σ = 471609844992. Its totient is φ = 117779077632.

The previous prime is 257776683013. The next prime is 257776683061. The reversal of 257776683045 is 540386677752.

It is a happy number.

It is not a de Polignac number, because 257776683045 - 2⁵ = 257776683013 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 257776683045.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 440802 + ... + 842531.

It is an arithmetic number, because the mean of its divisors is an integer number (14737807656).

Almost surely, 2^257776683045 is an apocalyptic number.

It is an amenable number.

257776683045 is a deficient number, since it is larger than the sum of its proper divisors (213833161947).

257776683045 is a wasteful number, since it uses less digits than its factorization.

257776683045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1285261.

The product of its (nonzero) digits is 59270400, while the sum is 60.

The spelling of 257776683045 in words is "two hundred fifty-seven billion, seven hundred seventy-six million, six hundred eighty-three thousand, forty-five".