20622870102889 has 4 divisors (see below), whose sum is σ = 20623268903040. Its totient is φ = 20622471302740.

The previous prime is 20622870102881. The next prime is 20622870102893. The reversal of 20622870102889 is 98820107822602.

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 20622870102889 - 2³ = 20622870102881 is a prime.

It is a super-2 number, since 2×20622870102889² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20622870102881) 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, 199322497 + ... + 199425934.

It is an arithmetic number, because the mean of its divisors is an integer number (5155817225760).

Almost surely, 2^{20622870102889} is an apocalyptic number.

It is an amenable number.

20622870102889 is a deficient number, since it is larger than the sum of its proper divisors (398800151).

20622870102889 is an equidigital number, since it uses as much as digits as its factorization.

20622870102889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398800150.

The product of its (nonzero) digits is 3096576, while the sum is 55.

The spelling of 20622870102889 in words is "twenty trillion, six hundred twenty-two billion, eight hundred seventy million, one hundred two thousand, eight hundred eighty-nine".