331479052820 has 48 divisors (see below), whose sum is σ = 704957904000. Its totient is φ = 130912867200.

The previous prime is 331479052799. The next prime is 331479052847. The reversal of 331479052820 is 28250974133.

It is a happy number.

It is a super-3 number, since 3×331479052820³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

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, 496631 + ... + 953729.

It is an arithmetic number, because the mean of its divisors is an integer number (14686623000).

Almost surely, 2^331479052820 is an apocalyptic number.

It is an amenable number.

331479052820 is an abundant number, since it is smaller than the sum of its proper divisors (373478851180).

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

331479052820 is a wasteful number, since it uses less digits than its factorization.

331479052820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457568 (or 457566 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 44.

The spelling of 331479052820 in words is "three hundred thirty-one billion, four hundred seventy-nine million, fifty-two thousand, eight hundred twenty".