326478020457883 has 16 divisors (see below), whose sum is σ = 395066366198784. Its totient is φ = 263376875710080.

The previous prime is 326478020457707. The next prime is 326478020457983. The reversal of 326478020457883 is 388754020874623.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-326478020457883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (326478020457983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124286478 + ... + 126886108.

It is an arithmetic number, because the mean of its divisors is an integer number (24691647887424).

Almost surely, 2^{326478020457883} is an apocalyptic number.

326478020457883 is a deficient number, since it is larger than the sum of its proper divisors (68588345740901).

326478020457883 is a wasteful number, since it uses less digits than its factorization.

326478020457883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3655002.

The product of its (nonzero) digits is 433520640, while the sum is 67.

The spelling of 326478020457883 in words is "three hundred twenty-six trillion, four hundred seventy-eight billion, twenty million, four hundred fifty-seven thousand, eight hundred eighty-three".