21480990932 has 24 divisors (see below), whose sum is σ = 37878468096. Its totient is φ = 10658875968.

The previous prime is 21480990919. The next prime is 21480990941. The reversal of 21480990932 is 23909908412.

It is a super-2 number, since 2×21480990932² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246413 + ... + 321995.

It is an arithmetic number, because the mean of its divisors is an integer number (1578269504).

Almost surely, 2^21480990932 is an apocalyptic number.

It is an amenable number.

21480990932 is a deficient number, since it is larger than the sum of its proper divisors (16397477164).

21480990932 is a wasteful number, since it uses less digits than its factorization.

21480990932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76127 (or 76125 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 47.

The spelling of 21480990932 in words is "twenty-one billion, four hundred eighty million, nine hundred ninety thousand, nine hundred thirty-two".