18095991982 has 8 divisors (see below), whose sum is σ = 27721519776. Its totient is φ = 8855485392.

The previous prime is 18095991961. The next prime is 18095992009. The reversal of 18095991982 is 28919959081.

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

It is a super-4 number, since 4×18095991982⁴ (a number of 42 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18095991982.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96255183 + ... + 96255370.

It is an arithmetic number, because the mean of its divisors is an integer number (3465189972).

Almost surely, 2^18095991982 is an apocalyptic number.

18095991982 is a deficient number, since it is larger than the sum of its proper divisors (9625527794).

18095991982 is a wasteful number, since it uses less digits than its factorization.

18095991982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192510602.

The product of its (nonzero) digits is 4199040, while the sum is 61.

The spelling of 18095991982 in words is "eighteen billion, ninety-five million, nine hundred ninety-one thousand, nine hundred eighty-two".