18246783806886 has 32 divisors (see below), whose sum is σ = 36989231385600. Its totient is φ = 5999967765440.

The previous prime is 18246783806869. The next prime is 18246783806897. The reversal of 18246783806886 is 68860838764281.

It is a congruent number.

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, 39410226 + ... + 39870533.

It is an arithmetic number, because the mean of its divisors is an integer number (1155913480800).

Almost surely, 2^{18246783806886} is an apocalyptic number.

18246783806886 is an abundant number, since it is smaller than the sum of its proper divisors (18742447578714).

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

18246783806886 is a wasteful number, since it uses less digits than its factorization.

18246783806886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79281284.

The product of its (nonzero) digits is 1189085184, while the sum is 75.

The spelling of 18246783806886 in words is "eighteen trillion, two hundred forty-six billion, seven hundred eighty-three million, eight hundred six thousand, eight hundred eighty-six".