21483493932 has 12 divisors (see below), whose sum is σ = 50128152536. Its totient is φ = 7161164640.

The previous prime is 21483493931. The next prime is 21483493949. The reversal of 21483493932 is 23939438412.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (21483493931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 895145569 + ... + 895145592.

Almost surely, 2^21483493932 is an apocalyptic number.

It is an amenable number.

21483493932 is an abundant number, since it is smaller than the sum of its proper divisors (28644658604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21483493932 is a wasteful number, since it uses less digits than its factorization.

21483493932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1790291168 (or 1790291166 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 48.

The spelling of 21483493932 in words is "twenty-one billion, four hundred eighty-three million, four hundred ninety-three thousand, nine hundred thirty-two".