257540781080 has 64 divisors (see below), whose sum is σ = 632224375200. Its totient is φ = 93639516160.

The previous prime is 257540781077. The next prime is 257540781109. The reversal of 257540781080 is 80187045752.

257540781080 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4004216 + ... + 4068024.

Almost surely, 2^257540781080 is an apocalyptic number.

257540781080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

257540781080 is an abundant number, since it is smaller than the sum of its proper divisors (374683594120).

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

257540781080 is a wasteful number, since it uses less digits than its factorization.

257540781080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73004 (or 73000 counting only the distinct ones).

The product of its (nonzero) digits is 627200, while the sum is 47.

The spelling of 257540781080 in words is "two hundred fifty-seven billion, five hundred forty million, seven hundred eighty-one thousand, eighty".