12779150278 has 8 divisors (see below), whose sum is σ = 19399674168. Its totient is φ = 6312592224.

The previous prime is 12779150273. The next prime is 12779150281. The reversal of 12779150278 is 87205197721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12779150273) 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, 38491251 + ... + 38491582.

It is an arithmetic number, because the mean of its divisors is an integer number (2424959271).

Almost surely, 2^12779150278 is an apocalyptic number.

12779150278 is a deficient number, since it is larger than the sum of its proper divisors (6620523890).

12779150278 is an equidigital number, since it uses as much as digits as its factorization.

12779150278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76982918.

The product of its (nonzero) digits is 493920, while the sum is 49.

The spelling of 12779150278 in words is "twelve billion, seven hundred seventy-nine million, one hundred fifty thousand, two hundred seventy-eight".