13818074646 has 8 divisors (see below), whose sum is σ = 27636149304. Its totient is φ = 4606024880.

The previous prime is 13818074609. The next prime is 13818074659. The reversal of 13818074646 is 64647081831.

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

13818074646 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 13818074595 and 13818074604.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 1151506215 + ... + 1151506226.

It is an arithmetic number, because the mean of its divisors is an integer number (3454518663).

Almost surely, 2^13818074646 is an apocalyptic number.

13818074646 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

13818074646 is a wasteful number, since it uses less digits than its factorization.

13818074646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2303012446.

The product of its (nonzero) digits is 774144, while the sum is 48.

The spelling of 13818074646 in words is "thirteen billion, eight hundred eighteen million, seventy-four thousand, six hundred forty-six".