257419260852 has 24 divisors (see below), whose sum is σ = 646848399456. Its totient is φ = 79205926368.

The previous prime is 257419260829. The next prime is 257419260883. The reversal of 257419260852 is 258062914752.

It is a junction number, because it is equal to n+sod(n) for n = 257419260795 and 257419260804.

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, 825061578 + ... + 825061889.

It is an arithmetic number, because the mean of its divisors is an integer number (26952016644).

Almost surely, 2^257419260852 is an apocalyptic number.

It is an amenable number.

257419260852 is an abundant number, since it is smaller than the sum of its proper divisors (389429138604).

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

257419260852 is a wasteful number, since it uses less digits than its factorization.

257419260852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1650123487 (or 1650123485 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 51.

The spelling of 257419260852 in words is "two hundred fifty-seven billion, four hundred nineteen million, two hundred sixty thousand, eight hundred fifty-two".