18435358798 has 16 divisors (see below), whose sum is σ = 29391073920. Its totient is φ = 8647754616.

The previous prime is 18435358793. The next prime is 18435358801. The reversal of 18435358798 is 89785353481.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18435358793) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2351140 + ... + 2358967.

It is an arithmetic number, because the mean of its divisors is an integer number (1836942120).

Almost surely, 2^18435358798 is an apocalyptic number.

18435358798 is a deficient number, since it is larger than the sum of its proper divisors (10955715122).

18435358798 is a wasteful number, since it uses less digits than its factorization.

18435358798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4710231.

The product of its digits is 29030400, while the sum is 61.

The spelling of 18435358798 in words is "eighteen billion, four hundred thirty-five million, three hundred fifty-eight thousand, seven hundred ninety-eight".