22647947231 has 16 divisors (see below), whose sum is σ = 27977284608. Its totient is φ = 17853112800.

The previous prime is 22647947219. The next prime is 22647947279. The reversal of 22647947231 is 13274974622.

It is a cyclic number.

It is not a de Polignac number, because 22647947231 - 2³⁴ = 5468078047 is a prime.

It is a super-2 number, since 2×22647947231² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22647847231) 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 15 ways as a sum of consecutive naturals, for example, 434525 + ... + 483846.

It is an arithmetic number, because the mean of its divisors is an integer number (1748580288).

Almost surely, 2^22647947231 is an apocalyptic number.

22647947231 is a deficient number, since it is larger than the sum of its proper divisors (5329337377).

22647947231 is a wasteful number, since it uses less digits than its factorization.

22647947231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918662.

The product of its digits is 1016064, while the sum is 47.

The spelling of 22647947231 in words is "twenty-two billion, six hundred forty-seven million, nine hundred forty-seven thousand, two hundred thirty-one".