20622680851 has 2 divisors, whose sum is σ = 20622680852. Its totient is φ = 20622680850.

The previous prime is 20622680833. The next prime is 20622680867. The reversal of 20622680851 is 15808622602.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20622680851 - 2⁷ = 20622680723 is a prime.

It is not a weakly prime, because it can be changed into another prime (20622680801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10311340425 + 10311340426.

It is an arithmetic number, because the mean of its divisors is an integer number (10311340426).

Almost surely, 2^20622680851 is an apocalyptic number.

20622680851 is a deficient number, since it is larger than the sum of its proper divisors (1).

20622680851 is an equidigital number, since it uses as much as digits as its factorization.

20622680851 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 92160, while the sum is 40.

The spelling of 20622680851 in words is "twenty billion, six hundred twenty-two million, six hundred eighty thousand, eight hundred fifty-one".