12677477720 has 32 divisors (see below), whose sum is σ = 28527584400. Its totient is φ = 5070411648.

The previous prime is 12677477719. The next prime is 12677477737. The reversal of 12677477720 is 2777477621.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 581171 + ... + 602589.

Almost surely, 2^12677477720 is an apocalyptic number.

12677477720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12677477720 is an abundant number, since it is smaller than the sum of its proper divisors (15850106680).

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

12677477720 is a wasteful number, since it uses less digits than its factorization.

12677477720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36227 (or 36223 counting only the distinct ones).

The product of its (nonzero) digits is 1613472, while the sum is 50.

Subtracting from 12677477720 its reverse (2777477621), we obtain a palindrome (9900000099).

The spelling of 12677477720 in words is "twelve billion, six hundred seventy-seven million, four hundred seventy-seven thousand, seven hundred twenty".