12779361502 has 8 divisors (see below), whose sum is σ = 19830043800. Its totient is φ = 6169346904.

The previous prime is 12779361493. The next prime is 12779361509. The reversal of 12779361502 is 20516397721.

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 (12779361509) 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, 110166852 + ... + 110166967.

It is an arithmetic number, because the mean of its divisors is an integer number (2478755475).

Almost surely, 2^12779361502 is an apocalyptic number.

12779361502 is a deficient number, since it is larger than the sum of its proper divisors (7050682298).

12779361502 is a wasteful number, since it uses less digits than its factorization.

12779361502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220333850.

The product of its (nonzero) digits is 158760, while the sum is 43.

The spelling of 12779361502 in words is "twelve billion, seven hundred seventy-nine million, three hundred sixty-one thousand, five hundred two".