18894318246 has 24 divisors (see below), whose sum is σ = 41149809480. Its totient is φ = 6265472256.

The previous prime is 18894318239. The next prime is 18894318251. The reversal of 18894318246 is 64281349881.

It is a happy number.

18894318246 is a `hidden beast` number, since 1 + 8 + 89 + 4 + 318 + 246 = 666.

It is a super-2 number, since 2×18894318246² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18894318192 and 18894318201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2715916 + ... + 2722863.

It is an arithmetic number, because the mean of its divisors is an integer number (1714575395).

Almost surely, 2^18894318246 is an apocalyptic number.

18894318246 is an abundant number, since it is smaller than the sum of its proper divisors (22255491234).

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

18894318246 is a wasteful number, since it uses less digits than its factorization.

18894318246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5438980 (or 5438977 counting only the distinct ones).

The product of its digits is 2654208, while the sum is 54.

The spelling of 18894318246 in words is "eighteen billion, eight hundred ninety-four million, three hundred eighteen thousand, two hundred forty-six".