20244297804937 has 4 divisors (see below), whose sum is σ = 20942377039620. Its totient is φ = 19546218570256.

The previous prime is 20244297804919. The next prime is 20244297804959. The reversal of 20244297804937 is 73940879244202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15351225508096 + 4893072296841 = 3918064^2 + 2212029^2 .

It is a cyclic number.

It is not a de Polignac number, because 20244297804937 - 2²⁷ = 20244163587209 is a prime.

It is a super-2 number, since 2×20244297804937² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20244297804917) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 349039617298 + ... + 349039617355.

It is an arithmetic number, because the mean of its divisors is an integer number (5235594259905).

Almost surely, 2^{20244297804937} is an apocalyptic number.

It is an amenable number.

20244297804937 is a deficient number, since it is larger than the sum of its proper divisors (698079234683).

20244297804937 is an equidigital number, since it uses as much as digits as its factorization.

20244297804937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698079234682.

The product of its (nonzero) digits is 48771072, while the sum is 61.

The spelling of 20244297804937 in words is "twenty trillion, two hundred forty-four billion, two hundred ninety-seven million, eight hundred four thousand, nine hundred thirty-seven".