257271213180 has 24 divisors (see below), whose sum is σ = 720359397072. Its totient is φ = 68605656832.

The previous prime is 257271213169. The next prime is 257271213191. The reversal of 257271213180 is 81312172752.

It is an interprime number because it is at equal distance from previous prime (257271213169) and next prime (257271213191).

It is a super-2 number, since 2×257271213180² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2143926717 + ... + 2143926836.

It is an arithmetic number, because the mean of its divisors is an integer number (30014974878).

Almost surely, 2^257271213180 is an apocalyptic number.

257271213180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

257271213180 is an abundant number, since it is smaller than the sum of its proper divisors (463088183892).

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

257271213180 is a wasteful number, since it uses less digits than its factorization.

257271213180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4287853565 (or 4287853563 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 39.

The spelling of 257271213180 in words is "two hundred fifty-seven billion, two hundred seventy-one million, two hundred thirteen thousand, one hundred eighty".