22774132647 has 18 divisors (see below), whose sum is σ = 37597371032. Its totient is φ = 13013105616.

The previous prime is 22774132643. The next prime is 22774132687. The reversal of 22774132647 is 74623147722.

22774132647 is a `hidden beast` number, since 227 + 7 + 413 + 2 + 6 + 4 + 7 = 666.

It is not a de Polignac number, because 22774132647 - 2² = 22774132643 is a prime.

It is a super-2 number, since 2×22774132647² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22774132643) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1188313 + ... + 1207325.

Almost surely, 2^22774132647 is an apocalyptic number.

22774132647 is a deficient number, since it is larger than the sum of its proper divisors (14823238385).

22774132647 is an frugal number, since it uses more digits than its factorization.

22774132647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38039 (or 19023 counting only the distinct ones).

The product of its digits is 790272, while the sum is 45.

The spelling of 22774132647 in words is "twenty-two billion, seven hundred seventy-four million, one hundred thirty-two thousand, six hundred forty-seven".