257474465108 has 48 divisors (see below), whose sum is σ = 519402240000. Its totient is φ = 109394863200.

The previous prime is 257474465093. The next prime is 257474465119. The reversal of 257474465108 is 801564474752.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 257474465108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2048753 + ... + 2170791.

It is an arithmetic number, because the mean of its divisors is an integer number (10820880000).

Almost surely, 2^257474465108 is an apocalyptic number.

257474465108 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

257474465108 is an abundant number, since it is smaller than the sum of its proper divisors (261927774892).

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

257474465108 is a wasteful number, since it uses less digits than its factorization.

257474465108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122700 (or 122698 counting only the distinct ones).

The product of its (nonzero) digits is 7526400, while the sum is 53.

The spelling of 257474465108 in words is "two hundred fifty-seven billion, four hundred seventy-four million, four hundred sixty-five thousand, one hundred eight".