20492518932 has 144 divisors (see below), whose sum is σ = 57096399360. Its totient is φ = 6168343104.

The previous prime is 20492518883. The next prime is 20492518939. The reversal of 20492518932 is 23981529402.

20492518932 is a `hidden beast` number, since 2 + 0 + 49 + 2 + 518 + 93 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20492518939) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4827603 + ... + 4831845.

Almost surely, 2^20492518932 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20492518932, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28548199680).

20492518932 is an abundant number, since it is smaller than the sum of its proper divisors (36603880428).

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

20492518932 is a wasteful number, since it uses less digits than its factorization.

20492518932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4602 (or 4597 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The spelling of 20492518932 in words is "twenty billion, four hundred ninety-two million, five hundred eighteen thousand, nine hundred thirty-two".