18460894898 has 8 divisors (see below), whose sum is σ = 29320244892. Its totient is φ = 8687479936.

The previous prime is 18460894897. The next prime is 18460894913. The reversal of 18460894898 is 89849806481.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 14504107489 + 3956787409 = 120433^2 + 62903^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18460894897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 271483715 + ... + 271483782.

Almost surely, 2^18460894898 is an apocalyptic number.

18460894898 is a deficient number, since it is larger than the sum of its proper divisors (10859349994).

18460894898 is a wasteful number, since it uses less digits than its factorization.

18460894898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542967516.

The product of its (nonzero) digits is 31850496, while the sum is 65.

The spelling of 18460894898 in words is "eighteen billion, four hundred sixty million, eight hundred ninety-four thousand, eight hundred ninety-eight".