12704999811690 has 32 divisors (see below), whose sum is σ = 30492786747456. Its totient is φ = 3387912483200.

The previous prime is 12704999811689. The next prime is 12704999811719. The reversal of 12704999811690 is 9611899940721.

It is a happy number.

It is a super-2 number, since 2×12704999811690² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4281036 + ... + 6613415.

It is an arithmetic number, because the mean of its divisors is an integer number (952899585858).

Almost surely, 2^{12704999811690} is an apocalyptic number.

12704999811690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12704999811690 is an abundant number, since it is smaller than the sum of its proper divisors (17787786935766).

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

12704999811690 is a wasteful number, since it uses less digits than its factorization.

12704999811690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10933334.

The product of its (nonzero) digits is 17635968, while the sum is 66.

The spelling of 12704999811690 in words is "twelve trillion, seven hundred four billion, nine hundred ninety-nine million, eight hundred eleven thousand, six hundred ninety".