4369721496321 has 32 divisors (see below), whose sum is σ = 6137891020800. Its totient is φ = 2762049628800.

The previous prime is 4369721496241. The next prime is 4369721496323. The reversal of 4369721496321 is 1236941279634.

It is not a de Polignac number, because 4369721496321 - 2²⁶ = 4369654387457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4369721496323) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1023345 + ... + 3128366.

It is an arithmetic number, because the mean of its divisors is an integer number (191809094400).

Almost surely, 2^{4369721496321} is an apocalyptic number.

4369721496321 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

4369721496321 is a deficient number, since it is larger than the sum of its proper divisors (1768169524479).

4369721496321 is a wasteful number, since it uses less digits than its factorization.

4369721496321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4151997.

The product of its digits is 11757312, while the sum is 57.

The spelling of 4369721496321 in words is "four trillion, three hundred sixty-nine billion, seven hundred twenty-one million, four hundred ninety-six thousand, three hundred twenty-one".