257814480248 has 32 divisors (see below), whose sum is σ = 523202988000. Its totient is φ = 118393342848.

The previous prime is 257814480223. The next prime is 257814480251. The reversal of 257814480248 is 842084418752.

It is a self number, because there is not a number n which added to its sum of digits gives 257814480248.

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, 6207911 + ... + 6249302.

It is an arithmetic number, because the mean of its divisors is an integer number (16350093375).

Almost surely, 2^257814480248 is an apocalyptic number.

It is an amenable number.

257814480248 is an abundant number, since it is smaller than the sum of its proper divisors (265388507752).

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

257814480248 is a wasteful number, since it uses less digits than its factorization.

257814480248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12457431 (or 12457427 counting only the distinct ones).

The product of its (nonzero) digits is 4587520, while the sum is 53.

The spelling of 257814480248 in words is "two hundred fifty-seven billion, eight hundred fourteen million, four hundred eighty thousand, two hundred forty-eight".