18002436798 has 16 divisors (see below), whose sum is σ = 36007292160. Its totient is φ = 6000409176.

The previous prime is 18002436797. The next prime is 18002436799. The reversal of 18002436798 is 89763420081.

It is an interprime number because it is at equal distance from previous prime (18002436797) and next prime (18002436799).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18002436797) 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, 4443 + ... + 189801.

It is an arithmetic number, because the mean of its divisors is an integer number (2250455760).

Almost surely, 2^18002436798 is an apocalyptic number.

18002436798 is an abundant number, since it is smaller than the sum of its proper divisors (18004855362).

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

18002436798 is a wasteful number, since it uses less digits than its factorization.

18002436798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201551.

The product of its (nonzero) digits is 580608, while the sum is 48.

The spelling of 18002436798 in words is "eighteen billion, two million, four hundred thirty-six thousand, seven hundred ninety-eight".