326431356401451 has 128 divisors (see below), whose sum is σ = 545728923058176. Its totient is φ = 169322455572480.

The previous prime is 326431356401429. The next prime is 326431356401453. The reversal of 326431356401451 is 154104653134623.

It is not a de Polignac number, because 326431356401451 - 2⁷ = 326431356401323 is a prime.

It is a super-2 number, since 2×326431356401451² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 326431356401451.

It is not an unprimeable number, because it can be changed into a prime (326431356401453) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 548362611 + ... + 548957571.

It is an arithmetic number, because the mean of its divisors is an integer number (4263507211392).

Almost surely, 2^{326431356401451} is an apocalyptic number.

326431356401451 is a deficient number, since it is larger than the sum of its proper divisors (219297566656725).

326431356401451 is a wasteful number, since it uses less digits than its factorization.

326431356401451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595481.

The product of its (nonzero) digits is 3110400, while the sum is 48.

The spelling of 326431356401451 in words is "three hundred twenty-six trillion, four hundred thirty-one billion, three hundred fifty-six million, four hundred one thousand, four hundred fifty-one".