257089599940 has 24 divisors (see below), whose sum is σ = 541519255872. Its totient is φ = 102525155040.

The previous prime is 257089599911. The next prime is 257089599941. The reversal of 257089599940 is 49995980752.

It is not an unprimeable number, because it can be changed into a prime (257089599941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19411024 + ... + 19424263.

It is an arithmetic number, because the mean of its divisors is an integer number (22563302328).

Almost surely, 2^257089599940 is an apocalyptic number.

257089599940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

257089599940 is an abundant number, since it is smaller than the sum of its proper divisors (284429655932).

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

257089599940 is a wasteful number, since it uses less digits than its factorization.

257089599940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38835627 (or 38835625 counting only the distinct ones).

The product of its (nonzero) digits is 73483200, while the sum is 67.

The spelling of 257089599940 in words is "two hundred fifty-seven billion, eighty-nine million, five hundred ninety-nine thousand, nine hundred forty".