326406840761144 has 64 divisors (see below), whose sum is σ = 721319999662080. Its totient is φ = 136513552752000.

The previous prime is 326406840761093. The next prime is 326406840761171. The reversal of 326406840761144 is 441167048604623.

It is a self number, because there is not a number n which added to its sum of digits gives 326406840761144.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 458359112 + ... + 459070679.

It is an arithmetic number, because the mean of its divisors is an integer number (11270624994720).

Almost surely, 2^{326406840761144} is an apocalyptic number.

It is an amenable number.

326406840761144 is an abundant number, since it is smaller than the sum of its proper divisors (394913158900936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

326406840761144 is a wasteful number, since it uses less digits than its factorization.

326406840761144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917430132 (or 917430128 counting only the distinct ones).

The product of its (nonzero) digits is 18579456, while the sum is 56.

The spelling of 326406840761144 in words is "three hundred twenty-six trillion, four hundred six billion, eight hundred forty million, seven hundred sixty-one thousand, one hundred forty-four".