21899875330 has 16 divisors (see below), whose sum is σ = 39435734520. Its totient is φ = 8756403712.

The previous prime is 21899875313. The next prime is 21899875331. The reversal of 21899875330 is 3357899812.

It can be written as a sum of positive squares in 4 ways, for example, as 21705244929 + 194630401 = 147327^2 + 13951^2 .

It is not an unprimeable number, because it can be changed into a prime (21899875331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 417295 + ... + 466834.

Almost surely, 2^21899875330 is an apocalyptic number.

21899875330 is a deficient number, since it is larger than the sum of its proper divisors (17535859190).

21899875330 is a wasteful number, since it uses less digits than its factorization.

21899875330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 886613.

The product of its (nonzero) digits is 3265920, while the sum is 55.

The spelling of 21899875330 in words is "twenty-one billion, eight hundred ninety-nine million, eight hundred seventy-five thousand, three hundred thirty".