12786480736 has 24 divisors (see below), whose sum is σ = 25183743480. Its totient is φ = 6390609408.

The previous prime is 12786480727. The next prime is 12786480739. The reversal of 12786480736 is 63708468721.

It is a super-2 number, since 2×12786480736² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12786480739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2041 + ... + 159928.

It is an arithmetic number, because the mean of its divisors is an integer number (1049322645).

Almost surely, 2^12786480736 is an apocalyptic number.

12786480736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12786480736 is a deficient number, since it is larger than the sum of its proper divisors (12397262744).

12786480736 is a wasteful number, since it uses less digits than its factorization.

12786480736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164446 (or 164438 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 52.

The spelling of 12786480736 in words is "twelve billion, seven hundred eighty-six million, four hundred eighty thousand, seven hundred thirty-six".