12987777358 has 16 divisors (see below), whose sum is σ = 19567170000. Its totient is φ = 6465450112.

The previous prime is 12987777353. The next prime is 12987777377. The reversal of 12987777358 is 85377778921.

It is a self number, because there is not a number n which added to its sum of digits gives 12987777358.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12987777353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 411318 + ... + 441766.

It is an arithmetic number, because the mean of its divisors is an integer number (1222948125).

Almost surely, 2^12987777358 is an apocalyptic number.

12987777358 is a deficient number, since it is larger than the sum of its proper divisors (6579392642).

12987777358 is a wasteful number, since it uses less digits than its factorization.

12987777358 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31379.

The product of its digits is 41489280, while the sum is 64.

The spelling of 12987777358 in words is "twelve billion, nine hundred eighty-seven million, seven hundred seventy-seven thousand, three hundred fifty-eight".