12260778792 has 32 divisors (see below), whose sum is σ = 30675477600. Its totient is φ = 4083788864.

The previous prime is 12260778791. The next prime is 12260778839. The reversal of 12260778792 is 29787706221.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (12260778791) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164067 + ... + 226802.

It is an arithmetic number, because the mean of its divisors is an integer number (958608675).

Almost surely, 2^12260778792 is an apocalyptic number.

12260778792 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12260778792 is an abundant number, since it is smaller than the sum of its proper divisors (18414698808).

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

12260778792 is a wasteful number, since it uses less digits than its factorization.

12260778792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392185 (or 392181 counting only the distinct ones).

The product of its (nonzero) digits is 1185408, while the sum is 51.

The spelling of 12260778792 in words is "twelve billion, two hundred sixty million, seven hundred seventy-eight thousand, seven hundred ninety-two".