326897872378 has 64 divisors (see below), whose sum is σ = 618933519360. Its totient is φ = 125784489600.

The previous prime is 326897872369. The next prime is 326897872381. The reversal of 326897872378 is 873278798623.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12088893 + ... + 12115903.

It is an arithmetic number, because the mean of its divisors is an integer number (9670836240).

Almost surely, 2^326897872378 is an apocalyptic number.

326897872378 is a deficient number, since it is larger than the sum of its proper divisors (292035646982).

326897872378 is a wasteful number, since it uses less digits than its factorization.

326897872378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28003.

The product of its digits is 341397504, while the sum is 70.

The spelling of 326897872378 in words is "three hundred twenty-six billion, eight hundred ninety-seven million, eight hundred seventy-two thousand, three hundred seventy-eight".