257612830770 has 16 divisors (see below), whose sum is σ = 618270793920. Its totient is φ = 68696754864.

The previous prime is 257612830747. The next prime is 257612830781. The reversal of 257612830770 is 77038216752.

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, 4293547150 + ... + 4293547209.

It is an arithmetic number, because the mean of its divisors is an integer number (38641924620).

Almost surely, 2^257612830770 is an apocalyptic number.

257612830770 is an abundant number, since it is smaller than the sum of its proper divisors (360657963150).

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

257612830770 is a wasteful number, since it uses less digits than its factorization.

257612830770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8587094369.

The product of its (nonzero) digits is 987840, while the sum is 48.

The spelling of 257612830770 in words is "two hundred fifty-seven billion, six hundred twelve million, eight hundred thirty thousand, seven hundred seventy".