13803991246 has 8 divisors (see below), whose sum is σ = 20706609960. Its totient is φ = 6901787928.

The previous prime is 13803991217. The next prime is 13803991277. The reversal of 13803991246 is 64219930831.

13803991246 = T₉₅₉₂₉ + T₉₅₉₃₀ + T₉₅₉₃₁.

It is a happy number.

13803991246 is a nontrivial binomial coefficient, being equal to C(166157, 2).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 13803991196 and 13803991205.

It is a congruent number.

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, 1 + ... + 166156.

It is an arithmetic number, because the mean of its divisors is an integer number (2588326245).

Almost surely, 2^13803991246 is an apocalyptic number.

13803991246 is the 166156-th triangular number.

13803991246 is the 95931-st centered triangular number and also the 55386-th centered nonagonal number.

13803991246 is a deficient number, since it is larger than the sum of its proper divisors (6902618714).

13803991246 is a wasteful number, since it uses less digits than its factorization.

13803991246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207698.

The product of its (nonzero) digits is 279936, while the sum is 46.

The spelling of 13803991246 in words is "thirteen billion, eight hundred three million, nine hundred ninety-one thousand, two hundred forty-six".