12885774774 has 16 divisors (see below), whose sum is σ = 26602890240. Its totient is φ = 4156701480.

The previous prime is 12885774773. The next prime is 12885774793. The reversal of 12885774774 is 47747758821.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12885774773) 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, 34638994 + ... + 34639365.

It is an arithmetic number, because the mean of its divisors is an integer number (1662680640).

Almost surely, 2^12885774774 is an apocalyptic number.

12885774774 is an abundant number, since it is smaller than the sum of its proper divisors (13717115466).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12885774774 is a wasteful number, since it uses less digits than its factorization.

12885774774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69278395.

The product of its digits is 24586240, while the sum is 60.

The spelling of 12885774774 in words is "twelve billion, eight hundred eighty-five million, seven hundred seventy-four thousand, seven hundred seventy-four".