8423900181 has 16 divisors (see below), whose sum is σ = 12484584000. Its totient is φ = 5613804144.

The previous prime is 8423900179. The next prime is 8423900183. The reversal of 8423900181 is 1810093248.

It is an interprime number because it is at equal distance from previous prime (8423900179) and next prime (8423900183).

It is not a de Polignac number, because 8423900181 - 2¹ = 8423900179 is a prime.

It is a super-3 number, since 3×8423900181³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8423900183) 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, 15075 + ... + 130671.

It is an arithmetic number, because the mean of its divisors is an integer number (780286500).

Almost surely, 2^8423900181 is an apocalyptic number.

It is an amenable number.

8423900181 is a deficient number, since it is larger than the sum of its proper divisors (4060683819).

8423900181 is a wasteful number, since it uses less digits than its factorization.

8423900181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118305 (or 118299 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 8423900181 is about 91781.8074620455. The cubic root of 8423900181 is about 2034.7188290404.

The spelling of 8423900181 in words is "eight billion, four hundred twenty-three million, nine hundred thousand, one hundred eighty-one".