13815806104 has 8 divisors (see below), whose sum is σ = 25904636460. Its totient is φ = 6907903048.

The previous prime is 13815806077. The next prime is 13815806107. The reversal of 13815806104 is 40160851831.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13815806107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 863487874 + ... + 863487889.

Almost surely, 2^13815806104 is an apocalyptic number.

It is an amenable number.

13815806104 is a deficient number, since it is larger than the sum of its proper divisors (12088830356).

13815806104 is a wasteful number, since it uses less digits than its factorization.

13815806104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1726975769 (or 1726975765 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 37.

It can be divided in two parts, 1381580 and 6104, that added together give a square (1387684 = 1178²).

The spelling of 13815806104 in words is "thirteen billion, eight hundred fifteen million, eight hundred six thousand, one hundred four".