21896533835 has 32 divisors (see below), whose sum is σ = 29097667584. Its totient is φ = 15684592000.

The previous prime is 21896533829. The next prime is 21896533843. The reversal of 21896533835 is 53833569812.

It is not a de Polignac number, because 21896533835 - 2¹⁴ = 21896517451 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4984490 + ... + 4988880.

It is an arithmetic number, because the mean of its divisors is an integer number (909302112).

Almost surely, 2^21896533835 is an apocalyptic number.

21896533835 is a deficient number, since it is larger than the sum of its proper divisors (7201133749).

21896533835 is a wasteful number, since it uses less digits than its factorization.

21896533835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5755.

The product of its digits is 4665600, while the sum is 53.

The spelling of 21896533835 in words is "twenty-one billion, eight hundred ninety-six million, five hundred thirty-three thousand, eight hundred thirty-five".