257278496117532 has 24 divisors (see below), whose sum is σ = 619681539036672. Its totient is φ = 82993063263600.

The previous prime is 257278496117527. The next prime is 257278496117551. The reversal of 257278496117532 is 235711694872752.

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, 345804429894 + ... + 345804430637.

It is an arithmetic number, because the mean of its divisors is an integer number (25820064126528).

Almost surely, 2^{257278496117532} is an apocalyptic number.

It is an amenable number.

257278496117532 is an abundant number, since it is smaller than the sum of its proper divisors (362403042919140).

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

257278496117532 is a wasteful number, since it uses less digits than its factorization.

257278496117532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691608860569 (or 691608860567 counting only the distinct ones).

The product of its digits is 355622400, while the sum is 69.

The spelling of 257278496117532 in words is "two hundred fifty-seven trillion, two hundred seventy-eight billion, four hundred ninety-six million, one hundred seventeen thousand, five hundred thirty-two".