20422651926485 has 32 divisors (see below), whose sum is σ = 25535632776192. Its totient is φ = 15662417264640.

The previous prime is 20422651926473. The next prime is 20422651926487. The reversal of 20422651926485 is 58462915622402.

It is a de Polignac number, because none of the positive numbers 2^k-20422651926485 is a prime.

It is a super-2 number, since 2×20422651926485² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20422651926485.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20422651926487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 508094549 + ... + 508134741.

It is an arithmetic number, because the mean of its divisors is an integer number (797988524256).

Almost surely, 2^{20422651926485} is an apocalyptic number.

It is an amenable number.

20422651926485 is a deficient number, since it is larger than the sum of its proper divisors (5112980849707).

20422651926485 is a wasteful number, since it uses less digits than its factorization.

20422651926485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70973.

The product of its (nonzero) digits is 16588800, while the sum is 56.

The spelling of 20422651926485 in words is "twenty trillion, four hundred twenty-two billion, six hundred fifty-one million, nine hundred twenty-six thousand, four hundred eighty-five".