3618872334873 has 20 divisors (see below), whose sum is σ = 5406126206580. Its totient is φ = 2412511748352.

The previous prime is 3618872334853. The next prime is 3618872334881. The reversal of 3618872334873 is 3784332788163.

It is a happy number.

3618872334873 is a `hidden beast` number, since 3 + 6 + 1 + 88 + 72 + 3 + 3 + 487 + 3 = 666.

3618872334873 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3367823236569 + 251049098304 = 1835163^2 + 501048^2 .

It is not a de Polignac number, because 3618872334873 - 2³³ = 3610282400281 is a prime.

It is a super-2 number, since 2×3618872334873² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3618872334873.

It is not an unprimeable number, because it can be changed into a prime (3618872334853) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2249893 + ... + 3507101.

It is an arithmetic number, because the mean of its divisors is an integer number (270306310329).

Almost surely, 2^{3618872334873} is an apocalyptic number.

It is an amenable number.

3618872334873 is a deficient number, since it is larger than the sum of its proper divisors (1787253871707).

3618872334873 is a wasteful number, since it uses less digits than its factorization.

3618872334873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1292758 (or 1292749 counting only the distinct ones).

The product of its digits is 97542144, while the sum is 63.

The spelling of 3618872334873 in words is "three trillion, six hundred eighteen billion, eight hundred seventy-two million, three hundred thirty-four thousand, eight hundred seventy-three".