20344533274021 has 32 divisors (see below), whose sum is σ = 24753583411200. Its totient is φ = 16479460673280.

The previous prime is 20344533274007. The next prime is 20344533274081. The reversal of 20344533274021 is 12047233544302.

It is not a de Polignac number, because 20344533274021 - 2⁵ = 20344533273989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20344533274081) 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, 3123186 + ... + 7102348.

It is an arithmetic number, because the mean of its divisors is an integer number (773549481600).

Almost surely, 2^{20344533274021} is an apocalyptic number.

It is an amenable number.

20344533274021 is a deficient number, since it is larger than the sum of its proper divisors (4409050137179).

20344533274021 is a wasteful number, since it uses less digits than its factorization.

20344533274021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3980649.

The product of its (nonzero) digits is 483840, while the sum is 40.

The spelling of 20344533274021 in words is "twenty trillion, three hundred forty-four billion, five hundred thirty-three million, two hundred seventy-four thousand, twenty-one".