257471031916 has 48 divisors (see below), whose sum is σ = 538058949120. Its totient is φ = 105404112000.

The previous prime is 257471031871. The next prime is 257471031949. The reversal of 257471031916 is 619130174752.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (46).

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, 205416 + ... + 746416.

It is an arithmetic number, because the mean of its divisors is an integer number (11209561440).

Almost surely, 2^257471031916 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 257471031916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269029474560).

257471031916 is an abundant number, since it is smaller than the sum of its proper divisors (280587917204).

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

257471031916 is a wasteful number, since it uses less digits than its factorization.

257471031916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541774 (or 541772 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 46.

The spelling of 257471031916 in words is "two hundred fifty-seven billion, four hundred seventy-one million, thirty-one thousand, nine hundred sixteen".