5616978449 has 8 divisors (see below), whose sum is σ = 5948058600. Its totient is φ = 5285972736.

The previous prime is 5616978439. The next prime is 5616978469. The reversal of 5616978449 is 9448796165.

It can be written as a sum of positive squares in 4 ways, for example, as 4246868224 + 1370110225 = 65168^2 + 37015^2 .

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 5616978449 - 2⁸ = 5616978193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5616978439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 237827 + ... + 260375.

It is an arithmetic number, because the mean of its divisors is an integer number (743507325).

Almost surely, 2^5616978449 is an apocalyptic number.

It is an amenable number.

5616978449 is a deficient number, since it is larger than the sum of its proper divisors (331080151).

5616978449 is a wasteful number, since it uses less digits than its factorization.

5616978449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37219.

The product of its digits is 13063680, while the sum is 59.

The square root of 5616978449 is about 74946.5039144589. The cubic root of 5616978449 is about 1777.6008633732.

The spelling of 5616978449 in words is "five billion, six hundred sixteen million, nine hundred seventy-eight thousand, four hundred forty-nine".