12052038778 has 24 divisors (see below), whose sum is σ = 20351968308. Its totient is φ = 5320626432.

The previous prime is 12052038773. The next prime is 12052038811. The reversal of 12052038778 is 87783025021.

It can be written as a sum of positive squares in 2 ways, for example, as 11940588529 + 111450249 = 109273^2 + 10557^2 .

It is not an unprimeable number, because it can be changed into a prime (12052038773) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 424375 + ... + 451882.

Almost surely, 2^12052038778 is an apocalyptic number.

12052038778 is a deficient number, since it is larger than the sum of its proper divisors (8299929530).

12052038778 is a wasteful number, since it uses less digits than its factorization.

12052038778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 876318 (or 876295 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 43.

The spelling of 12052038778 in words is "twelve billion, fifty-two million, thirty-eight thousand, seven hundred seventy-eight".