320461273888 has 96 divisors (see below), whose sum is σ = 744894517248. Its totient is φ = 132803539200.

The previous prime is 320461273879. The next prime is 320461273921. The reversal of 320461273888 is 888372164023.

It is a happy number.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

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, 8946831 + ... + 8982577.

It is an arithmetic number, because the mean of its divisors is an integer number (7759317888).

Almost surely, 2^320461273888 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 320461273888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (372447258624).

320461273888 is an abundant number, since it is smaller than the sum of its proper divisors (424433243360).

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

320461273888 is a wasteful number, since it uses less digits than its factorization.

320461273888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37086 (or 37078 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 52.

The spelling of 320461273888 in words is "three hundred twenty billion, four hundred sixty-one million, two hundred seventy-three thousand, eight hundred eighty-eight".