321040425888 has 672 divisors, whose sum is σ = 1193788100736. Its totient is φ = 82677417984.

The previous prime is 321040425887. The next prime is 321040425907. The reversal of 321040425888 is 888524040123.

321040425888 is a `hidden beast` number, since 3 + 21 + 0 + 4 + 0 + 42 + 588 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (672).

It is not an unprimeable number, because it can be changed into a prime (321040425887) by changing a digit.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 91280706 + ... + 91284222.

It is an arithmetic number, because the mean of its divisors is an integer number (1776470388).

Almost surely, 2^321040425888 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 321040425888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (596894050368).

321040425888 is an abundant number, since it is smaller than the sum of its proper divisors (872747674848).

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

321040425888 is a wasteful number, since it uses less digits than its factorization.

321040425888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3608 (or 3585 counting only the distinct ones).

The product of its (nonzero) digits is 491520, while the sum is 45.

The spelling of 321040425888 in words is "three hundred twenty-one billion, forty million, four hundred twenty-five thousand, eight hundred eighty-eight".