18000181795 has 8 divisors (see below), whose sum is σ = 21608988624. Its totient is φ = 14394298464.

The previous prime is 18000181789. The next prime is 18000181817. The reversal of 18000181795 is 59718100081.

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

It is a cyclic number.

It is not a de Polignac number, because 18000181795 - 2¹³ = 18000173603 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 717304 + ... + 741973.

It is an arithmetic number, because the mean of its divisors is an integer number (2701123578).

Almost surely, 2^18000181795 is an apocalyptic number.

18000181795 is a deficient number, since it is larger than the sum of its proper divisors (3608806829).

18000181795 is a wasteful number, since it uses less digits than its factorization.

18000181795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1461749.

The product of its (nonzero) digits is 20160, while the sum is 40.

The spelling of 18000181795 in words is "eighteen billion, one hundred eighty-one thousand, seven hundred ninety-five".