12032997780 has 24 divisors (see below), whose sum is σ = 33692393952. Its totient is φ = 3208799392.

The previous prime is 12032997773. The next prime is 12032997829. The reversal of 12032997780 is 8779923021.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100274922 + ... + 100275041.

It is an arithmetic number, because the mean of its divisors is an integer number (1403849748).

Almost surely, 2^12032997780 is an apocalyptic number.

12032997780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12032997780 is an abundant number, since it is smaller than the sum of its proper divisors (21659396172).

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

12032997780 is a wasteful number, since it uses less digits than its factorization.

12032997780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200549975 (or 200549973 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 48.

The spelling of 12032997780 in words is "twelve billion, thirty-two million, nine hundred ninety-seven thousand, seven hundred eighty".