18074207885 has 8 divisors (see below), whose sum is σ = 22275240216. Its totient is φ = 14068572480.

The previous prime is 18074207869. The next prime is 18074207909. The reversal of 18074207885 is 58870247081.

It can be written as a sum of positive squares in 4 ways, for example, as 5180832484 + 12893375401 = 71978^2 + 113549^2 .

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

It is not a de Polignac number, because 18074207885 - 2⁴ = 18074207869 is a prime.

It is a Duffinian number.

It is a congruent 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, 48849026 + ... + 48849395.

It is an arithmetic number, because the mean of its divisors is an integer number (2784405027).

Almost surely, 2^18074207885 is an apocalyptic number.

It is an amenable number.

18074207885 is a deficient number, since it is larger than the sum of its proper divisors (4201032331).

18074207885 is an equidigital number, since it uses as much as digits as its factorization.

18074207885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97698463.

The product of its (nonzero) digits is 1003520, while the sum is 50.

The spelling of 18074207885 in words is "eighteen billion, seventy-four million, two hundred seven thousand, eight hundred eighty-five".