257422196472 has 128 divisors (see below), whose sum is σ = 741269760000. Its totient is φ = 72972130176.

The previous prime is 257422196411. The next prime is 257422196503. The reversal of 257422196472 is 274691224752.

257422196472 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50881479 + ... + 50886537.

It is an arithmetic number, because the mean of its divisors is an integer number (5791170000).

Almost surely, 2^257422196472 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 257422196472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (370634880000).

257422196472 is an abundant number, since it is smaller than the sum of its proper divisors (483847563528).

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

257422196472 is a wasteful number, since it uses less digits than its factorization.

257422196472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7393 (or 7389 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 51.

The spelling of 257422196472 in words is "two hundred fifty-seven billion, four hundred twenty-two million, one hundred ninety-six thousand, four hundred seventy-two".