18276768867 has 24 divisors (see below), whose sum is σ = 30015153936. Its totient is φ = 9829521408.

The previous prime is 18276768793. The next prime is 18276768869. The reversal of 18276768867 is 76886767281.

It is not a de Polignac number, because 18276768867 - 2¹² = 18276764771 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18276768798 and 18276768807.

It is not an unprimeable number, because it can be changed into a prime (18276768869) 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, 3654318 + ... + 3659315.

It is an arithmetic number, because the mean of its divisors is an integer number (1250631414).

Almost surely, 2^18276768867 is an apocalyptic number.

18276768867 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

18276768867 is a deficient number, since it is larger than the sum of its proper divisors (11738385069).

18276768867 is a wasteful number, since it uses less digits than its factorization.

18276768867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7313667 (or 7313660 counting only the distinct ones).

The product of its digits is 75866112, while the sum is 66.

The spelling of 18276768867 in words is "eighteen billion, two hundred seventy-six million, seven hundred sixty-eight thousand, eight hundred sixty-seven".