20626713235 has 4 divisors (see below), whose sum is σ = 24752055888. Its totient is φ = 16501370584.

The previous prime is 20626713229. The next prime is 20626713259. The reversal of 20626713235 is 53231762602.

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 20626713235 - 2³ = 20626713227 is a prime.

It is a super-2 number, since 2×20626713235² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20626713194 and 20626713203.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2062671319 + ... + 2062671328.

It is an arithmetic number, because the mean of its divisors is an integer number (6188013972).

Almost surely, 2^20626713235 is an apocalyptic number.

20626713235 is a deficient number, since it is larger than the sum of its proper divisors (4125342653).

20626713235 is an equidigital number, since it uses as much as digits as its factorization.

20626713235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4125342652.

The product of its (nonzero) digits is 90720, while the sum is 37.

The spelling of 20626713235 in words is "twenty billion, six hundred twenty-six million, seven hundred thirteen thousand, two hundred thirty-five".