21486369304 has 16 divisors (see below), whose sum is σ = 40289739120. Its totient is φ = 10742438880.

The previous prime is 21486369299. The next prime is 21486369337. The reversal of 21486369304 is 40396368412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40509 + ... + 211219.

It is an arithmetic number, because the mean of its divisors is an integer number (2518108695).

Almost surely, 2^21486369304 is an apocalyptic number.

It is an amenable number.

21486369304 is a deficient number, since it is larger than the sum of its proper divisors (18803369816).

21486369304 is a wasteful number, since it uses less digits than its factorization.

21486369304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186450 (or 186446 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 46.

The spelling of 21486369304 in words is "twenty-one billion, four hundred eighty-six million, three hundred sixty-nine thousand, three hundred four".