21132699404 has 6 divisors (see below), whose sum is σ = 36982223964. Its totient is φ = 10566349700.

The previous prime is 21132699389. The next prime is 21132699421. The reversal of 21132699404 is 40499623112.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2641587422 + ... + 2641587429.

It is an arithmetic number, because the mean of its divisors is an integer number (6163703994).

Almost surely, 2^21132699404 is an apocalyptic number.

It is an amenable number.

21132699404 is a deficient number, since it is larger than the sum of its proper divisors (15849524560).

21132699404 is a wasteful number, since it uses less digits than its factorization.

21132699404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5283174855 (or 5283174853 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 41.

The spelling of 21132699404 in words is "twenty-one billion, one hundred thirty-two million, six hundred ninety-nine thousand, four hundred four".