618463349 has 24 divisors (see below), whose sum is σ = 766770840. Its totient is φ = 495645696.

The previous prime is 618463343. The next prime is 618463379. The reversal of 618463349 is 943364816.

It can be written as a sum of positive squares in 4 ways, for example, as 7879249 + 610584100 = 2807^2 + 24710^2 .

It is not a de Polignac number, because 618463349 - 2⁴ = 618463333 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 (618463343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 128417 + ... + 133145.

It is an arithmetic number, because the mean of its divisors is an integer number (31948785).

Almost surely, 2^618463349 is an apocalyptic number.

It is an amenable number.

618463349 is a deficient number, since it is larger than the sum of its proper divisors (148307491).

618463349 is a wasteful number, since it uses less digits than its factorization.

618463349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4917 (or 4910 counting only the distinct ones).

The product of its digits is 373248, while the sum is 44.

The square root of 618463349 is about 24868.9233582799. The cubic root of 618463349 is about 851.9968503524.

The spelling of 618463349 in words is "six hundred eighteen million, four hundred sixty-three thousand, three hundred forty-nine".