22621984651 has 8 divisors (see below), whose sum is σ = 25895877344. Its totient is φ = 19358637120.

The previous prime is 22621984639. The next prime is 22621984661. The reversal of 22621984651 is 15648912622.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22621984651 - 2¹⁵ = 22621951883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22621984621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2631690 + ... + 2640271.

It is an arithmetic number, because the mean of its divisors is an integer number (3236984668).

Almost surely, 2^22621984651 is an apocalyptic number.

22621984651 is a deficient number, since it is larger than the sum of its proper divisors (3273892693).

22621984651 is an equidigital number, since it uses as much as digits as its factorization.

22621984651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5272581.

The product of its digits is 414720, while the sum is 46.

The spelling of 22621984651 in words is "twenty-two billion, six hundred twenty-one million, nine hundred eighty-four thousand, six hundred fifty-one".