618782413 has 8 divisors (see below), whose sum is σ = 656007680. Its totient is φ = 582636240.

The previous prime is 618782399. The next prime is 618782419. The reversal of 618782413 is 314287816.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-618782413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618782419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 268593 + ... + 270886.

It is an arithmetic number, because the mean of its divisors is an integer number (82000960).

Almost surely, 2^618782413 is an apocalyptic number.

It is an amenable number.

618782413 is a deficient number, since it is larger than the sum of its proper divisors (37225267).

618782413 is a wasteful number, since it uses less digits than its factorization.

618782413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539547.

The product of its digits is 64512, while the sum is 40.

The square root of 618782413 is about 24875.3374449474. The cubic root of 618782413 is about 852.1433396523.

The spelling of 618782413 in words is "six hundred eighteen million, seven hundred eighty-two thousand, four hundred thirteen".