431478250938 has 96 divisors (see below), whose sum is σ = 1075599907200. Its totient is φ = 122452881408.

The previous prime is 431478250829. The next prime is 431478250963. The reversal of 431478250938 is 839052874134.

It is a happy number.

431478250938 is a `hidden beast` number, since 4 + 31 + 4 + 78 + 2 + 509 + 38 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20942370 + ... + 20962962.

It is an arithmetic number, because the mean of its divisors is an integer number (11204165700).

Almost surely, 2^431478250938 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 431478250938, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (537799953600).

431478250938 is an abundant number, since it is smaller than the sum of its proper divisors (644121656262).

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

431478250938 is a wasteful number, since it uses less digits than its factorization.

431478250938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21716 (or 21713 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The spelling of 431478250938 in words is "four hundred thirty-one billion, four hundred seventy-eight million, two hundred fifty thousand, nine hundred thirty-eight".