257362428580 has 24 divisors (see below), whose sum is σ = 540990487800. Its totient is φ = 102844135680.

The previous prime is 257362428577. The next prime is 257362428593. The reversal of 257362428580 is 85824263752.

It can be written as a sum of positive squares in 4 ways, for example, as 167391844 + 257195036736 = 12938^2 + 507144^2 .

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, 6281305 + ... + 6322144.

It is an arithmetic number, because the mean of its divisors is an integer number (22541270325).

Almost surely, 2^257362428580 is an apocalyptic number.

257362428580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

257362428580 is an abundant number, since it is smaller than the sum of its proper divisors (283628059220).

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

257362428580 is a wasteful number, since it uses less digits than its factorization.

257362428580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12604479 (or 12604477 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 52.

The spelling of 257362428580 in words is "two hundred fifty-seven billion, three hundred sixty-two million, four hundred twenty-eight thousand, five hundred eighty".