18120607827 has 24 divisors (see below), whose sum is σ = 28126099152. Its totient is φ = 10347019200.

The previous prime is 18120607823. The next prime is 18120607831. The reversal of 18120607827 is 72870602181.

It is an interprime number because it is at equal distance from previous prime (18120607823) and next prime (18120607831).

It is not a de Polignac number, because 18120607827 - 2² = 18120607823 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18120607823) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 158377 + ... + 247637.

It is an arithmetic number, because the mean of its divisors is an integer number (1171920798).

Almost surely, 2^18120607827 is an apocalyptic number.

18120607827 is a deficient number, since it is larger than the sum of its proper divisors (10005491325).

18120607827 is a wasteful number, since it uses less digits than its factorization.

18120607827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90659 (or 90652 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 42.

The spelling of 18120607827 in words is "eighteen billion, one hundred twenty million, six hundred seven thousand, eight hundred twenty-seven".