18077830145 has 8 divisors (see below), whose sum is σ = 22636587456. Its totient is φ = 13833469936.

The previous prime is 18077830139. The next prime is 18077830153. The reversal of 18077830145 is 54103877081.

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 18077830145 - 2¹⁶ = 18077764609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18077830096 and 18077830105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78599147 + ... + 78599376.

It is an arithmetic number, because the mean of its divisors is an integer number (2829573432).

Almost surely, 2^18077830145 is an apocalyptic number.

It is an amenable number.

18077830145 is a deficient number, since it is larger than the sum of its proper divisors (4558757311).

18077830145 is a wasteful number, since it uses less digits than its factorization.

18077830145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157198551.

The product of its (nonzero) digits is 188160, while the sum is 44.

The spelling of 18077830145 in words is "eighteen billion, seventy-seven million, eight hundred thirty thousand, one hundred forty-five".