20926072504761 has 4 divisors (see below), whose sum is σ = 27901430006352. Its totient is φ = 13950715003172.

The previous prime is 20926072504747. The next prime is 20926072504793. The reversal of 20926072504761 is 16740527062902.

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 20926072504761 - 2⁶ = 20926072504697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20926072500761) 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, 3487678750791 + ... + 3487678750796.

It is an arithmetic number, because the mean of its divisors is an integer number (6975357501588).

Almost surely, 2^{20926072504761} is an apocalyptic number.

It is an amenable number.

20926072504761 is a deficient number, since it is larger than the sum of its proper divisors (6975357501591).

20926072504761 is an equidigital number, since it uses as much as digits as its factorization.

20926072504761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6975357501590.

The product of its (nonzero) digits is 2540160, while the sum is 51.

The spelling of 20926072504761 in words is "twenty trillion, nine hundred twenty-six billion, seventy-two million, five hundred four thousand, seven hundred sixty-one".