18089956846 has 16 divisors (see below), whose sum is σ = 29237298048. Its totient is φ = 8344908000.

The previous prime is 18089956823. The next prime is 18089956879. The reversal of 18089956846 is 64865998081.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127585 + ... + 229036.

It is an arithmetic number, because the mean of its divisors is an integer number (1827331128).

Almost surely, 2^18089956846 is an apocalyptic number.

18089956846 is a deficient number, since it is larger than the sum of its proper divisors (11147341202).

18089956846 is a wasteful number, since it uses less digits than its factorization.

18089956846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358587.

The product of its (nonzero) digits is 29859840, while the sum is 64.

The spelling of 18089956846 in words is "eighteen billion, eighty-nine million, nine hundred fifty-six thousand, eight hundred forty-six".