618383745 has 48 divisors (see below), whose sum is σ = 1228161792. Its totient is φ = 281957760.

The previous prime is 618383743. The next prime is 618383809. The reversal of 618383745 is 547383816.

It is not a de Polignac number, because 618383745 - 2¹ = 618383743 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 618383745.

It is not an unprimeable number, because it can be changed into a prime (618383743) 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, 130284 + ... + 134946.

It is an arithmetic number, because the mean of its divisors is an integer number (25586704).

Almost surely, 2^618383745 is an apocalyptic number.

It is an amenable number.

618383745 is a deficient number, since it is larger than the sum of its proper divisors (609778047).

618383745 is a wasteful number, since it uses less digits than its factorization.

618383745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5102 (or 5099 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 618383745 is about 24867.3228353999. The cubic root of 618383745 is about 851.9602945525.

The spelling of 618383745 in words is "six hundred eighteen million, three hundred eighty-three thousand, seven hundred forty-five".