21325888683 has 64 divisors (see below), whose sum is σ = 35625369600. Its totient is φ = 12491172000.

The previous prime is 21325888681. The next prime is 21325888721. The reversal of 21325888683 is 38688852312.

21325888683 is a `hidden beast` number, since 21 + 32 + 588 + 8 + 6 + 8 + 3 = 666.

It is not a de Polignac number, because 21325888683 - 2¹ = 21325888681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21325888681) 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, 11774848 + ... + 11776658.

It is an arithmetic number, because the mean of its divisors is an integer number (556646400).

Almost surely, 2^21325888683 is an apocalyptic number.

21325888683 is a deficient number, since it is larger than the sum of its proper divisors (14299480917).

21325888683 is a wasteful number, since it uses less digits than its factorization.

21325888683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3141 (or 3135 counting only the distinct ones).

The product of its digits is 4423680, while the sum is 54.

The spelling of 21325888683 in words is "twenty-one billion, three hundred twenty-five million, eight hundred eighty-eight thousand, six hundred eighty-three".