22147047087 has 24 divisors (see below), whose sum is σ = 32541578160. Its totient is φ = 13387862400.

The previous prime is 22147047079. The next prime is 22147047113. The reversal of 22147047087 is 78074074122.

It is not a de Polignac number, because 22147047087 - 2³ = 22147047079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22147047017) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62787 + ... + 219627.

It is an arithmetic number, because the mean of its divisors is an integer number (1355899090).

Almost surely, 2^22147047087 is an apocalyptic number.

22147047087 is a deficient number, since it is larger than the sum of its proper divisors (10394531073).

22147047087 is a wasteful number, since it uses less digits than its factorization.

22147047087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157255 (or 157244 counting only the distinct ones).

The product of its (nonzero) digits is 175616, while the sum is 42.

The spelling of 22147047087 in words is "twenty-two billion, one hundred forty-seven million, forty-seven thousand, eighty-seven".