618382745541 has 48 divisors (see below), whose sum is σ = 985143107520. Its totient is φ = 370661760000.

The previous prime is 618382745459. The next prime is 618382745573. The reversal of 618382745541 is 145547283816.

It is a happy number.

618382745541 is a `hidden beast` number, since 6 + 1 + 8 + 3 + 82 + 7 + 4 + 554 + 1 = 666.

It is not a de Polignac number, because 618382745541 - 2⁷ = 618382745413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618382745341) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9255786 + ... + 9322356.

It is an arithmetic number, because the mean of its divisors is an integer number (20523814740).

Almost surely, 2^618382745541 is an apocalyptic number.

It is an amenable number.

618382745541 is a deficient number, since it is larger than the sum of its proper divisors (366760361979).

618382745541 is a wasteful number, since it uses less digits than its factorization.

618382745541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67618 (or 67615 counting only the distinct ones).

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

The spelling of 618382745541 in words is "six hundred eighteen billion, three hundred eighty-two million, seven hundred forty-five thousand, five hundred forty-one".