12736690252 has 48 divisors (see below), whose sum is σ = 26346765312. Its totient is φ = 5311241280.

The previous prime is 12736690229. The next prime is 12736690259. The reversal of 12736690252 is 25209663721.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 12736690199 and 12736690208.

It is not an unprimeable number, because it can be changed into a prime (12736690259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24933 + ... + 161539.

It is an arithmetic number, because the mean of its divisors is an integer number (548890944).

Almost surely, 2^12736690252 is an apocalyptic number.

It is an amenable number.

12736690252 is an abundant number, since it is smaller than the sum of its proper divisors (13610075060).

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

12736690252 is a wasteful number, since it uses less digits than its factorization.

12736690252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136798 (or 136796 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 43.

The spelling of 12736690252 in words is "twelve billion, seven hundred thirty-six million, six hundred ninety thousand, two hundred fifty-two".