12277131602 has 18 divisors (see below), whose sum is σ = 18827151447. Its totient is φ = 6004353964.

The previous prime is 12277131571. The next prime is 12277131631. The reversal of 12277131602 is 20613177221.

12277131602 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 6138565801 + 6138565801 = 78349^2 + 78349^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=78349.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 7363973 + ... + 7365639.

Almost surely, 2^12277131602 is an apocalyptic number.

12277131602 is a deficient number, since it is larger than the sum of its proper divisors (6550019845).

12277131602 is an frugal number, since it uses more digits than its factorization.

12277131602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3430 (or 1716 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 32.

Multiplying 12277131602 by its sum of digits (32), we get a square (392868211264 = 626792²).

The spelling of 12277131602 in words is "twelve billion, two hundred seventy-seven million, one hundred thirty-one thousand, six hundred two".