20392836732 has 18 divisors (see below), whose sum is σ = 51548559608. Its totient is φ = 6797612232.

The previous prime is 20392836719. The next prime is 20392836773. The reversal of 20392836732 is 23763829302.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

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, 283233808 + ... + 283233879.

Almost surely, 2^20392836732 is an apocalyptic number.

It is an amenable number.

20392836732 is an abundant number, since it is smaller than the sum of its proper divisors (31155722876).

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

20392836732 is a wasteful number, since it uses less digits than its factorization.

20392836732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566467697 (or 566467692 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 45.

The spelling of 20392836732 in words is "twenty billion, three hundred ninety-two million, eight hundred thirty-six thousand, seven hundred thirty-two".