21867902883 has 64 divisors (see below), whose sum is σ = 35094259200. Its totient is φ = 13413133440.

The previous prime is 21867902843. The next prime is 21867902891. The reversal of 21867902883 is 38820976812.

It is a happy number.

21867902883 is a `hidden beast` number, since 218 + 67 + 90 + 288 + 3 = 666.

It is a Cunningham number, because it is equal to 147878²-1.

It is not a de Polignac number, because 21867902883 - 2¹³ = 21867894691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21867902843) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3989941 + ... + 3995417.

It is an arithmetic number, because the mean of its divisors is an integer number (548347800).

Almost surely, 2^21867902883 is an apocalyptic number.

21867902883 is a deficient number, since it is larger than the sum of its proper divisors (13226356317).

21867902883 is a wasteful number, since it uses less digits than its factorization.

21867902883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5729 (or 5723 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 54.

The spelling of 21867902883 in words is "twenty-one billion, eight hundred sixty-seven million, nine hundred two thousand, eight hundred eighty-three".