20844298943 has 8 divisors (see below), whose sum is σ = 22580535600. Its totient is φ = 19240889304.

The previous prime is 20844298933. The next prime is 20844298949. The reversal of 20844298943 is 34989244802.

It is not a de Polignac number, because 20844298943 - 2¹⁸ = 20844036799 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 (20844298949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4741613 + ... + 4746006.

It is an arithmetic number, because the mean of its divisors is an integer number (2822566950).

Almost surely, 2^20844298943 is an apocalyptic number.

20844298943 is a deficient number, since it is larger than the sum of its proper divisors (1736236657).

20844298943 is an frugal number, since it uses more digits than its factorization.

20844298943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9487658 (or 9487632 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 53.

The spelling of 20844298943 in words is "twenty billion, eight hundred forty-four million, two hundred ninety-eight thousand, nine hundred forty-three".