12774689420 has 48 divisors (see below), whose sum is σ = 27034560000. Its totient is φ = 5070436800.

The previous prime is 12774689407. The next prime is 12774689453. The reversal of 12774689420 is 2498647721.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1782845 + ... + 1789995.

It is an arithmetic number, because the mean of its divisors is an integer number (563220000).

Almost surely, 2^12774689420 is an apocalyptic number.

12774689420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12774689420 is an abundant number, since it is smaller than the sum of its proper divisors (14259870580).

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

12774689420 is a wasteful number, since it uses less digits than its factorization.

12774689420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7838 (or 7836 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 50.

The spelling of 12774689420 in words is "twelve billion, seven hundred seventy-four million, six hundred eighty-nine thousand, four hundred twenty".