12774686532 has 24 divisors (see below), whose sum is σ = 29815264416. Its totient is φ = 4257134208.

The previous prime is 12774686501. The next prime is 12774686581. The reversal of 12774686532 is 23568647721.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87493 + ... + 182220.

It is an arithmetic number, because the mean of its divisors is an integer number (1242302684).

Almost surely, 2^12774686532 is an apocalyptic number.

12774686532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12774686532 is an abundant number, since it is smaller than the sum of its proper divisors (17040577884).

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

12774686532 is a wasteful number, since it uses less digits than its factorization.

12774686532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273667 (or 273665 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 51.

The spelling of 12774686532 in words is "twelve billion, seven hundred seventy-four million, six hundred eighty-six thousand, five hundred thirty-two".