12691284195052 has 12 divisors (see below), whose sum is σ = 22214154947040. Its totient is φ = 6344382781616.

The previous prime is 12691284195017. The next prime is 12691284195089. The reversal of 12691284195052 is 25059148219621.

It is a super-2 number, since 2×12691284195052² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12691284194984 and 12691284195002.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 314806303 + ... + 314846614.

It is an arithmetic number, because the mean of its divisors is an integer number (1851179578920).

Almost surely, 2^{12691284195052} is an apocalyptic number.

It is an amenable number.

12691284195052 is a deficient number, since it is larger than the sum of its proper divisors (9522870751988).

12691284195052 is a wasteful number, since it uses less digits than its factorization.

12691284195052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629657960 (or 629657958 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 55.

The spelling of 12691284195052 in words is "twelve trillion, six hundred ninety-one billion, two hundred eighty-four million, one hundred ninety-five thousand, fifty-two".