12995009946 has 12 divisors (see below), whose sum is σ = 28155854922. Its totient is φ = 4331669976.

The previous prime is 12995009941. The next prime is 12995009953. The reversal of 12995009946 is 64990059921.

12995009946 is a `hidden beast` number, since 1 + 2 + 9 + 9 + 500 + 99 + 46 = 666.

It can be written as a sum of positive squares in only one way, i.e., 11064725721 + 1930284225 = 105189^2 + 43935^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12995009892 and 12995009901.

It is not an unprimeable number, because it can be changed into a prime (12995009941) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 360972481 + ... + 360972516.

Almost surely, 2^12995009946 is an apocalyptic number.

12995009946 is an abundant number, since it is smaller than the sum of its proper divisors (15160844976).

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

12995009946 is a wasteful number, since it uses less digits than its factorization.

12995009946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721945005 (or 721945002 counting only the distinct ones).

The product of its (nonzero) digits is 1574640, while the sum is 54.

The spelling of 12995009946 in words is "twelve billion, nine hundred ninety-five million, nine thousand, nine hundred forty-six".