20797792269 has 4 divisors (see below), whose sum is σ = 27730389696. Its totient is φ = 13865194844.

The previous prime is 20797792243. The next prime is 20797792273. The reversal of 20797792269 is 96229779702.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20797792269 - 2⁵ = 20797792237 is a prime.

It is a super-2 number, since 2×20797792269² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20797792219) 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, 3466298709 + ... + 3466298714.

It is an arithmetic number, because the mean of its divisors is an integer number (6932597424).

Almost surely, 2^20797792269 is an apocalyptic number.

It is an amenable number.

20797792269 is a deficient number, since it is larger than the sum of its proper divisors (6932597427).

20797792269 is an equidigital number, since it uses as much as digits as its factorization.

20797792269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6932597426.

The product of its (nonzero) digits is 12002256, while the sum is 60.

The spelling of 20797792269 in words is "twenty billion, seven hundred ninety-seven million, seven hundred ninety-two thousand, two hundred sixty-nine".