320873701544 has 32 divisors (see below), whose sum is σ = 661054413600. Its totient is φ = 144802384320.

The previous prime is 320873701537. The next prime is 320873701553. The reversal of 320873701544 is 445107378023.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 320873701495 and 320873701504.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13103927 + ... + 13128390.

It is an arithmetic number, because the mean of its divisors is an integer number (20657950425).

Almost surely, 2^320873701544 is an apocalyptic number.

It is an amenable number.

320873701544 is an abundant number, since it is smaller than the sum of its proper divisors (340180712056).

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

320873701544 is a wasteful number, since it uses less digits than its factorization.

320873701544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26232473 (or 26232469 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 44.

The spelling of 320873701544 in words is "three hundred twenty billion, eight hundred seventy-three million, seven hundred one thousand, five hundred forty-four".