12088878772 has 12 divisors (see below), whose sum is σ = 22399981380. Its totient is φ = 5688884096.

The previous prime is 12088878757. The next prime is 12088878779. The reversal of 12088878772 is 27787888021.

It can be written as a sum of positive squares in 2 ways, for example, as 7322909476 + 4765969296 = 85574^2 + 69036^2 .

It is a super-2 number, since 2×12088878772² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12088878779) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88888747 + ... + 88888882.

It is an arithmetic number, because the mean of its divisors is an integer number (1866665115).

Almost surely, 2^12088878772 is an apocalyptic number.

It is an amenable number.

12088878772 is a deficient number, since it is larger than the sum of its proper divisors (10311102608).

12088878772 is a wasteful number, since it uses less digits than its factorization.

12088878772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177777650 (or 177777648 counting only the distinct ones).

The product of its (nonzero) digits is 5619712, while the sum is 58.

The spelling of 12088878772 in words is "twelve billion, eighty-eight million, eight hundred seventy-eight thousand, seven hundred seventy-two".