20512037792 has 96 divisors (see below), whose sum is σ = 43211750400. Its totient is φ = 9567387648.

The previous prime is 20512037773. The next prime is 20512037827. The reversal of 20512037792 is 29773021502.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3442688 + ... + 3448640.

It is an arithmetic number, because the mean of its divisors is an integer number (450122400).

Almost surely, 2^20512037792 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 20512037792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21605875200).

20512037792 is an abundant number, since it is smaller than the sum of its proper divisors (22699712608).

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

20512037792 is a wasteful number, since it uses less digits than its factorization.

20512037792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6118 (or 6110 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 38.

The spelling of 20512037792 in words is "twenty billion, five hundred twelve million, thirty-seven thousand, seven hundred ninety-two".