18087035802 has 32 divisors (see below), whose sum is σ = 39938088960. Its totient is φ = 5414883120.

The previous prime is 18087035801. The next prime is 18087035809. The reversal of 18087035802 is 20853078081.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (18087035801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1645402 + ... + 1656357.

It is an arithmetic number, because the mean of its divisors is an integer number (1248065280).

Almost surely, 2^18087035802 is an apocalyptic number.

18087035802 is an abundant number, since it is smaller than the sum of its proper divisors (21851053158).

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

18087035802 is a wasteful number, since it uses less digits than its factorization.

18087035802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3301858.

The product of its (nonzero) digits is 107520, while the sum is 42.

The spelling of 18087035802 in words is "eighteen billion, eighty-seven million, thirty-five thousand, eight hundred two".