618275849 has 8 divisors (see below), whose sum is σ = 621162120. Its totient is φ = 615396096.

The previous prime is 618275831. The next prime is 618275869. The reversal of 618275849 is 948572816.

It can be written as a sum of positive squares in 4 ways, for example, as 7840000 + 610435849 = 2800^2 + 24707^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 618275849 - 2²⁴ = 601498633 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 618275797 and 618275806.

It is not an unprimeable number, because it can be changed into a prime (618275869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 318887 + ... + 320819.

It is an arithmetic number, because the mean of its divisors is an integer number (77645265).

Almost surely, 2^618275849 is an apocalyptic number.

It is an amenable number.

618275849 is a deficient number, since it is larger than the sum of its proper divisors (2886271).

618275849 is a wasteful number, since it uses less digits than its factorization.

618275849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3259.

The product of its digits is 967680, while the sum is 50.

The square root of 618275849 is about 24865.1533073898. The cubic root of 618275849 is about 851.9107414740.

It can be divided in two parts, 61827 and 5849, that added together give a palindrome (67676).

The spelling of 618275849 in words is "six hundred eighteen million, two hundred seventy-five thousand, eight hundred forty-nine".