12233577780 has 72 divisors (see below), whose sum is σ = 37120952232. Its totient is φ = 3261194496.

The previous prime is 12233577743. The next prime is 12233577799. The reversal of 12233577780 is 8777533221.

It is a happy number.

12233577780 is a `hidden beast` number, since 1 + 2 + 2 + 3 + 3 + 577 + 78 + 0 = 666.

12233577780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 938564496 + 11295013284 = 30636^2 + 106278^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent 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 23 ways as a sum of consecutive naturals, for example, 626322 + ... + 645558.

It is an arithmetic number, because the mean of its divisors is an integer number (515568781).

Almost surely, 2^12233577780 is an apocalyptic number.

12233577780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12233577780 is an abundant number, since it is smaller than the sum of its proper divisors (24887374452).

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

12233577780 is a wasteful number, since it uses less digits than its factorization.

12233577780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22785 (or 22780 counting only the distinct ones).

The product of its (nonzero) digits is 493920, while the sum is 45.

The spelling of 12233577780 in words is "twelve billion, two hundred thirty-three million, five hundred seventy-seven thousand, seven hundred eighty".