320465273870 has 128 divisors (see below), whose sum is σ = 681778944000. Its totient is φ = 108397771776.

The previous prime is 320465273867. The next prime is 320465273899. The reversal of 320465273870 is 78372564023.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 119441549 + ... + 119444231.

It is an arithmetic number, because the mean of its divisors is an integer number (5326398000).

Almost surely, 2^320465273870 is an apocalyptic number.

320465273870 is an abundant number, since it is smaller than the sum of its proper divisors (361313670130).

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

320465273870 is a wasteful number, since it uses less digits than its factorization.

320465273870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3167 (or 3153 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 47.

The spelling of 320465273870 in words is "three hundred twenty billion, four hundred sixty-five million, two hundred seventy-three thousand, eight hundred seventy".