326091880857494 has 4 divisors (see below), whose sum is σ = 489137821286244. Its totient is φ = 163045940428746.

The previous prime is 326091880857451. The next prime is 326091880857499. The reversal of 326091880857494 is 494758088190623.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×326091880857494² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (326091880857499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81522970214372 + ... + 81522970214375.

It is an arithmetic number, because the mean of its divisors is an integer number (122284455321561).

It is a 1-persistent number, because it is pandigital, but 2⋅326091880857494 = 652183761714988 is not.

Almost surely, 2^{326091880857494} is an apocalyptic number.

326091880857494 is a deficient number, since it is larger than the sum of its proper divisors (163045940428750).

326091880857494 is a wasteful number, since it uses less digits than its factorization.

326091880857494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163045940428749.

The product of its (nonzero) digits is 836075520, while the sum is 74.

The spelling of 326091880857494 in words is "three hundred twenty-six trillion, ninety-one billion, eight hundred eighty million, eight hundred fifty-seven thousand, four hundred ninety-four".