18435806670 has 64 divisors (see below), whose sum is σ = 45300144384. Its totient is φ = 4799208960.

The previous prime is 18435806657. The next prime is 18435806707. The reversal of 18435806670 is 7660853481.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 3520374 + ... + 3525606.

It is an arithmetic number, because the mean of its divisors is an integer number (707814756).

Almost surely, 2^18435806670 is an apocalyptic number.

18435806670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 18435806670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22650072192).

18435806670 is an abundant number, since it is smaller than the sum of its proper divisors (26864337714).

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

18435806670 is a wasteful number, since it uses less digits than its factorization.

18435806670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8017.

The product of its (nonzero) digits is 967680, while the sum is 48.

The spelling of 18435806670 in words is "eighteen billion, four hundred thirty-five million, eight hundred six thousand, six hundred seventy".