38743525818 has 12 divisors (see below), whose sum is σ = 83944305978. Its totient is φ = 12914508600.

The previous prime is 38743525817. The next prime is 38743525853. The reversal of 38743525818 is 81852534783.

38743525818 is a `hidden beast` number, since 3 + 8 + 7 + 4 + 3 + 52 + 581 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 31863321009 + 6880204809 = 178503^2 + 82947^2 .

It is not an unprimeable number, because it can be changed into a prime (38743525817) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1076209033 + ... + 1076209068.

Almost surely, 2^38743525818 is an apocalyptic number.

38743525818 is an abundant number, since it is smaller than the sum of its proper divisors (45200780160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38743525818 is a wasteful number, since it uses less digits than its factorization.

38743525818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2152418109 (or 2152418106 counting only the distinct ones).

The product of its digits is 6451200, while the sum is 54.

The spelling of 38743525818 in words is "thirty-eight billion, seven hundred forty-three million, five hundred twenty-five thousand, eight hundred eighteen".