20532444938 has 12 divisors (see below), whose sum is σ = 31305976758. Its totient is φ = 10097145360.

The previous prime is 20532444887. The next prime is 20532444953. The reversal of 20532444938 is 83944423502.

It can be written as a sum of positive squares in 3 ways, for example, as 475370809 + 20057074129 = 21803^2 + 141623^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1576220 + ... + 1589192.

Almost surely, 2^20532444938 is an apocalyptic number.

20532444938 is a deficient number, since it is larger than the sum of its proper divisors (10773531820).

20532444938 is an frugal number, since it uses more digits than its factorization.

20532444938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26009 (or 13036 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 44.

The spelling of 20532444938 in words is "twenty billion, five hundred thirty-two million, four hundred forty-four thousand, nine hundred thirty-eight".