20926072504699 has 4 divisors (see below), whose sum is σ = 20926417612464. Its totient is φ = 20925727396936.

The previous prime is 20926072504697. The next prime is 20926072504709. The reversal of 20926072504699 is 99640527062902.

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

It is a cyclic number.

It is not a de Polignac number, because 20926072504699 - 2¹ = 20926072504697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20926072504697) 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, 172462912 + ... + 172584205.

It is an arithmetic number, because the mean of its divisors is an integer number (5231604403116).

Almost surely, 2^{20926072504699} is an apocalyptic number.

20926072504699 is a deficient number, since it is larger than the sum of its proper divisors (345107765).

20926072504699 is an equidigital number, since it uses as much as digits as its factorization.

20926072504699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345107764.

The product of its (nonzero) digits is 29393280, while the sum is 61.

The spelling of 20926072504699 in words is "twenty trillion, nine hundred twenty-six billion, seventy-two million, five hundred four thousand, six hundred ninety-nine".