12920763232 has 96 divisors (see below), whose sum is σ = 29623853952. Its totient is φ = 5493080064.

The previous prime is 12920763197. The next prime is 12920763241. The reversal of 12920763232 is 23236702921.

It is a super-2 number, since 2×12920763232² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12920763191 and 12920763200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 312948 + ... + 351820.

It is an arithmetic number, because the mean of its divisors is an integer number (308581812).

Almost surely, 2^12920763232 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 12920763232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14811926976).

12920763232 is an abundant number, since it is smaller than the sum of its proper divisors (16703090720).

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

12920763232 is a wasteful number, since it uses less digits than its factorization.

12920763232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38960 (or 38952 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 37.

The spelling of 12920763232 in words is "twelve billion, nine hundred twenty million, seven hundred sixty-three thousand, two hundred thirty-two".