45238005415818 has 12 divisors (see below), whose sum is σ = 98015678400978. Its totient is φ = 15079335138600.

The previous prime is 45238005415817. The next prime is 45238005415843. The reversal of 45238005415818 is 81851450083254.

45238005415818 is a `hidden beast` number, since 4 + 5 + 2 + 3 + 8 + 0 + 0 + 54 + 1 + 581 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 38127500514009 + 7110504901809 = 6174747^2 + 2666553^2 .

It is a super-3 number, since 3×45238005415818³ (a number of 42 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (45238005415817) 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, 1256611261533 + ... + 1256611261568.

Almost surely, 2^{45238005415818} is an apocalyptic number.

45238005415818 is an abundant number, since it is smaller than the sum of its proper divisors (52777672985160).

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

45238005415818 is a wasteful number, since it uses less digits than its factorization.

45238005415818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2513222523109 (or 2513222523106 counting only the distinct ones).

The product of its (nonzero) digits is 6144000, while the sum is 54.

The spelling of 45238005415818 in words is "forty-five trillion, two hundred thirty-eight billion, five million, four hundred fifteen thousand, eight hundred eighteen".