22720136489 has 16 divisors (see below), whose sum is σ = 24205392000. Its totient is φ = 21251752704.

The previous prime is 22720136459. The next prime is 22720136497. The reversal of 22720136489 is 98463102722.

It is a cyclic number.

It is not a de Polignac number, because 22720136489 - 2⁸ = 22720136233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22720136459) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2306627 + ... + 2316455.

It is an arithmetic number, because the mean of its divisors is an integer number (1512837000).

Almost surely, 2^22720136489 is an apocalyptic number.

It is an amenable number.

22720136489 is a deficient number, since it is larger than the sum of its proper divisors (1485255511).

22720136489 is a wasteful number, since it uses less digits than its factorization.

22720136489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10672.

The product of its (nonzero) digits is 290304, while the sum is 44.

The spelling of 22720136489 in words is "twenty-two billion, seven hundred twenty million, one hundred thirty-six thousand, four hundred eighty-nine".