18349172070 has 32 divisors (see below), whose sum is σ = 45952710912. Its totient is φ = 4680368352.

The previous prime is 18349172041. The next prime is 18349172077. The reversal of 18349172070 is 7027194381.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18349172077) 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, 13295812 + ... + 13297191.

It is an arithmetic number, because the mean of its divisors is an integer number (1436022216).

Almost surely, 2^18349172070 is an apocalyptic number.

18349172070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18349172070 is an abundant number, since it is smaller than the sum of its proper divisors (27603538842).

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

18349172070 is a wasteful number, since it uses less digits than its factorization.

18349172070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26593036.

The product of its (nonzero) digits is 84672, while the sum is 42.

The spelling of 18349172070 in words is "eighteen billion, three hundred forty-nine million, one hundred seventy-two thousand, seventy".