22530918729 has 8 divisors (see below), whose sum is σ = 32772245472. Its totient is φ = 13655102240.

The previous prime is 22530918719. The next prime is 22530918731. The reversal of 22530918729 is 92781903522.

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 22530918729 - 2¹² = 22530914633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22530918719) 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, 341377524 + ... + 341377589.

It is an arithmetic number, because the mean of its divisors is an integer number (4096530684).

Almost surely, 2^22530918729 is an apocalyptic number.

It is an amenable number.

22530918729 is a deficient number, since it is larger than the sum of its proper divisors (10241326743).

22530918729 is a wasteful number, since it uses less digits than its factorization.

22530918729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682755127.

The product of its (nonzero) digits is 544320, while the sum is 48.

The spelling of 22530918729 in words is "twenty-two billion, five hundred thirty million, nine hundred eighteen thousand, seven hundred twenty-nine".