84009641181 has 8 divisors (see below), whose sum is σ = 112017641280. Its totient is φ = 56004034272.

The previous prime is 84009641173. The next prime is 84009641189. The reversal of 84009641181 is 18114690048.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (84009641173) and next prime (84009641189).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 84009641181 - 2³ = 84009641173 is a prime.

It is a super-2 number, since 2×84009641181² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84009641189) 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, 514720 + ... + 657993.

It is an arithmetic number, because the mean of its divisors is an integer number (14002205160).

Almost surely, 2^84009641181 is an apocalyptic number.

It is an amenable number.

84009641181 is a deficient number, since it is larger than the sum of its proper divisors (28008000099).

84009641181 is a wasteful number, since it uses less digits than its factorization.

84009641181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1196595.

The product of its (nonzero) digits is 55296, while the sum is 42.

The spelling of 84009641181 in words is "eighty-four billion, nine million, six hundred forty-one thousand, one hundred eighty-one".