22647877021 has 16 divisors (see below), whose sum is σ = 28242455040. Its totient is φ = 17643858480.

The previous prime is 22647876997. The next prime is 22647877039. The reversal of 22647877021 is 12077874622.

It is a cyclic number.

It is not a de Polignac number, because 22647877021 - 2⁵ = 22647876989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22647871021) 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, 354510 + ... + 413488.

It is an arithmetic number, because the mean of its divisors is an integer number (1765153440).

Almost surely, 2^22647877021 is an apocalyptic number.

It is an amenable number.

22647877021 is a deficient number, since it is larger than the sum of its proper divisors (5594578019).

22647877021 is a wasteful number, since it uses less digits than its factorization.

22647877021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63984.

The product of its (nonzero) digits is 526848, while the sum is 46.

The spelling of 22647877021 in words is "twenty-two billion, six hundred forty-seven million, eight hundred seventy-seven thousand, twenty-one".