321140754628026 has 48 divisors (see below), whose sum is σ = 691631574775104. Its totient is φ = 99369903085056.

The previous prime is 321140754628013. The next prime is 321140754628079. The reversal of 321140754628026 is 620826457041123.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 321140754628026.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1268382190 + ... + 1268635353.

It is an arithmetic number, because the mean of its divisors is an integer number (14408991141148).

Almost surely, 2^{321140754628026} is an apocalyptic number.

321140754628026 is an abundant number, since it is smaller than the sum of its proper divisors (370490820147078).

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

321140754628026 is a wasteful number, since it uses less digits than its factorization.

321140754628026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2537017655 (or 2537017638 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 51.

The spelling of 321140754628026 in words is "three hundred twenty-one trillion, one hundred forty billion, seven hundred fifty-four million, six hundred twenty-eight thousand, twenty-six".