18276533845 has 32 divisors (see below), whose sum is σ = 22943088000. Its totient is φ = 13959240960.

The previous prime is 18276533843. The next prime is 18276533887. The reversal of 18276533845 is 54833567281.

It is a happy number.

It is not a de Polignac number, because 18276533845 - 2¹ = 18276533843 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18276533792 and 18276533801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18276533843) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5420010 + ... + 5423380.

It is an arithmetic number, because the mean of its divisors is an integer number (716971500).

Almost surely, 2^18276533845 is an apocalyptic number.

It is an amenable number.

18276533845 is a deficient number, since it is larger than the sum of its proper divisors (4666554155).

18276533845 is a wasteful number, since it uses less digits than its factorization.

18276533845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3813.

The product of its digits is 4838400, while the sum is 52.

The spelling of 18276533845 in words is "eighteen billion, two hundred seventy-six million, five hundred thirty-three thousand, eight hundred forty-five".