320381078902 has 32 divisors (see below), whose sum is σ = 496435392000. Its totient is φ = 154995859200.

The previous prime is 320381078887. The next prime is 320381078987. The reversal of 320381078902 is 209870183023.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4986502 + ... + 5050342.

It is an arithmetic number, because the mean of its divisors is an integer number (15513606000).

Almost surely, 2^320381078902 is an apocalyptic number.

320381078902 is a deficient number, since it is larger than the sum of its proper divisors (176054313098).

320381078902 is a wasteful number, since it uses less digits than its factorization.

320381078902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64572.

The product of its (nonzero) digits is 145152, while the sum is 43.

The spelling of 320381078902 in words is "three hundred twenty billion, three hundred eighty-one million, seventy-eight thousand, nine hundred two".