20726306457711 has 16 divisors (see below), whose sum is σ = 28382109043200. Its totient is φ = 13444024435488.

The previous prime is 20726306457709. The next prime is 20726306457737. The reversal of 20726306457711 is 11775460362702.

It is not a de Polignac number, because 20726306457711 - 2¹ = 20726306457709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20726306457751) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33244110 + ... + 33861828.

It is an arithmetic number, because the mean of its divisors is an integer number (1773881815200).

Almost surely, 2^{20726306457711} is an apocalyptic number.

20726306457711 is a deficient number, since it is larger than the sum of its proper divisors (7655802585489).

20726306457711 is a wasteful number, since it uses less digits than its factorization.

20726306457711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920038.

The product of its (nonzero) digits is 2963520, while the sum is 51.

The spelling of 20726306457711 in words is "twenty trillion, seven hundred twenty-six billion, three hundred six million, four hundred fifty-seven thousand, seven hundred eleven".