12361332772778 has 16 divisors (see below), whose sum is σ = 20609288947296. Its totient is φ = 5512772762640.

The previous prime is 12361332772771. The next prime is 12361332772781. The reversal of 12361332772778 is 87727723316321.

It is not an unprimeable number, because it can be changed into a prime (12361332772771) 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, 5300741876 + ... + 5300744207.

It is an arithmetic number, because the mean of its divisors is an integer number (1288080559206).

Almost surely, 2^{12361332772778} is an apocalyptic number.

12361332772778 is a deficient number, since it is larger than the sum of its proper divisors (8247956174518).

12361332772778 is a wasteful number, since it uses less digits than its factorization.

12361332772778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10601486149.

The product of its digits is 24893568, while the sum is 59.

The spelling of 12361332772778 in words is "twelve trillion, three hundred sixty-one billion, three hundred thirty-two million, seven hundred seventy-two thousand, seven hundred seventy-eight".