20441980972 has 24 divisors (see below), whose sum is σ = 40887074816. Its totient is φ = 8760181968.

The previous prime is 20441980961. The next prime is 20441980981. The reversal of 20441980972 is 27908914402.

It is a super-2 number, since 2×20441980972² (a number of 21 digits) contains 22 as substring.

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, 578773 + ... + 613075.

Almost surely, 2^20441980972 is an apocalyptic number.

It is an amenable number.

20441980972 is an abundant number, since it is smaller than the sum of its proper divisors (20445093844).

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

20441980972 is a wasteful number, since it uses less digits than its factorization.

20441980972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55597 (or 55595 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 46.

The spelling of 20441980972 in words is "twenty billion, four hundred forty-one million, nine hundred eighty thousand, nine hundred seventy-two".