257445248676 has 96 divisors (see below), whose sum is σ = 749047219200. Its totient is φ = 66858576000.

The previous prime is 257445248657. The next prime is 257445248677. The reversal of 257445248676 is 676842544752.

It is not an unprimeable number, because it can be changed into a prime (257445248677) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7327351 + ... + 7362401.

It is an arithmetic number, because the mean of its divisors is an integer number (7802575200).

Almost surely, 2^257445248676 is an apocalyptic number.

It is an amenable number.

257445248676 is an abundant number, since it is smaller than the sum of its proper divisors (491601970524).

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

257445248676 is a wasteful number, since it uses less digits than its factorization.

257445248676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43025 (or 43023 counting only the distinct ones).

The product of its digits is 90316800, while the sum is 60.

The spelling of 257445248676 in words is "two hundred fifty-seven billion, four hundred forty-five million, two hundred forty-eight thousand, six hundred seventy-six".