321269728934 has 32 divisors (see below), whose sum is σ = 602184844800. Its totient is φ = 124884872640.

The previous prime is 321269728931. The next prime is 321269728951. The reversal of 321269728934 is 439827962123.

It is a self number, because there is not a number n which added to its sum of digits gives 321269728934.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321269728931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2308439 + ... + 2443650.

It is an arithmetic number, because the mean of its divisors is an integer number (18818276400).

Almost surely, 2^321269728934 is an apocalyptic number.

321269728934 is a deficient number, since it is larger than the sum of its proper divisors (280915115866).

321269728934 is a wasteful number, since it uses less digits than its factorization.

321269728934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4752548.

The product of its digits is 7838208, while the sum is 56.

The spelling of 321269728934 in words is "three hundred twenty-one billion, two hundred sixty-nine million, seven hundred twenty-eight thousand, nine hundred thirty-four".