326769407581664 has 24 divisors (see below), whose sum is σ = 643327748887320. Its totient is φ = 163384582467456.

The previous prime is 326769407581607. The next prime is 326769407581703. The reversal of 326769407581664 is 466185704967623.

It is a junction number, because it is equal to n+sod(n) for n = 326769407581591 and 326769407581600.

It is a congruent number.

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, 53117867 + ... + 58949525.

It is an arithmetic number, because the mean of its divisors is an integer number (26805322870305).

It is a 1-persistent number, because it is pandigital, but 2⋅326769407581664 = 653538815163328 is not.

Almost surely, 2^{326769407581664} is an apocalyptic number.

It is an amenable number.

326769407581664 is a deficient number, since it is larger than the sum of its proper divisors (316558341305656).

326769407581664 is a wasteful number, since it uses less digits than its factorization.

326769407581664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7582722 (or 7582714 counting only the distinct ones).

The product of its (nonzero) digits is 2194698240, while the sum is 74.

The spelling of 326769407581664 in words is "three hundred twenty-six trillion, seven hundred sixty-nine billion, four hundred seven million, five hundred eighty-one thousand, six hundred sixty-four".