12736948436 has 24 divisors (see below), whose sum is σ = 22628944800. Its totient is φ = 6271591392.

The previous prime is 12736948417. The next prime is 12736948463. The reversal of 12736948436 is 63484963721.

It is a super-2 number, since 2×12736948436² (a number of 21 digits) contains 22 as substring.

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, 1650515 + ... + 1658213.

It is an arithmetic number, because the mean of its divisors is an integer number (942872700).

Almost surely, 2^12736948436 is an apocalyptic number.

It is an amenable number.

12736948436 is a deficient number, since it is larger than the sum of its proper divisors (9891996364).

12736948436 is a wasteful number, since it uses less digits than its factorization.

12736948436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13943 (or 13941 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 53.

The spelling of 12736948436 in words is "twelve billion, seven hundred thirty-six million, nine hundred forty-eight thousand, four hundred thirty-six".