320013263572778 has 8 divisors (see below), whose sum is σ = 490233084622272. Its totient is φ = 156602235365356.

The previous prime is 320013263572753. The next prime is 320013263572781. The reversal of 320013263572778 is 877275362310023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1702198210400 + ... + 1702198210587.

It is an arithmetic number, because the mean of its divisors is an integer number (61279135577784).

Almost surely, 2^{320013263572778} is an apocalyptic number.

320013263572778 is a deficient number, since it is larger than the sum of its proper divisors (170219821049494).

320013263572778 is a wasteful number, since it uses less digits than its factorization.

320013263572778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3404396421036.

The product of its (nonzero) digits is 17781120, while the sum is 56.

The spelling of 320013263572778 in words is "three hundred twenty trillion, thirteen billion, two hundred sixty-three million, five hundred seventy-two thousand, seven hundred seventy-eight".