257245329696 has 48 divisors (see below), whose sum is σ = 704628517824. Its totient is φ = 82020249344.

The previous prime is 257245329659. The next prime is 257245329703. The reversal of 257245329696 is 696923542752.

It is a tau number, because it is divible by the number of its divisors (48).

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, 58250811 + ... + 58255226.

It is an arithmetic number, because the mean of its divisors is an integer number (14679760788).

Almost surely, 2^257245329696 is an apocalyptic number.

It is an amenable number.

257245329696 is an abundant number, since it is smaller than the sum of its proper divisors (447383188128).

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

257245329696 is a wasteful number, since it uses less digits than its factorization.

257245329696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116506073 (or 116506065 counting only the distinct ones).

The product of its digits is 48988800, while the sum is 60.

The spelling of 257245329696 in words is "two hundred fifty-seven billion, two hundred forty-five million, three hundred twenty-nine thousand, six hundred ninety-six".