21792653943 has 16 divisors (see below), whose sum is σ = 29226943200. Its totient is φ = 14443453440.

The previous prime is 21792653933. The next prime is 21792653989. The reversal of 21792653943 is 34935629712.

It is not a de Polignac number, because 21792653943 - 2¹⁰ = 21792652919 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21792653903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2650623 + ... + 2658831.

It is an arithmetic number, because the mean of its divisors is an integer number (1826683950).

Almost surely, 2^21792653943 is an apocalyptic number.

21792653943 is a deficient number, since it is larger than the sum of its proper divisors (7434289257).

21792653943 is a wasteful number, since it uses less digits than its factorization.

21792653943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13282.

The product of its digits is 2449440, while the sum is 51.

The spelling of 21792653943 in words is "twenty-one billion, seven hundred ninety-two million, six hundred fifty-three thousand, nine hundred forty-three".