5918979709 has 8 divisors (see below), whose sum is σ = 6269530680. Its totient is φ = 5568692736.

The previous prime is 5918979707. The next prime is 5918979749. The reversal of 5918979709 is 9079798195.

It can be written as a sum of positive squares in 4 ways, for example, as 1652016025 + 4266963684 = 40645^2 + 65322^2 .

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 5918979709 - 2¹ = 5918979707 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 (5918979707) 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, 18864 + ... + 110425.

It is an arithmetic number, because the mean of its divisors is an integer number (783691335).

Almost surely, 2^5918979709 is an apocalyptic number.

It is an amenable number.

5918979709 is a deficient number, since it is larger than the sum of its proper divisors (350550971).

5918979709 is a wasteful number, since it uses less digits than its factorization.

5918979709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131999.

The product of its (nonzero) digits is 12859560, while the sum is 64.

The square root of 5918979709 is about 76934.9056605648. The cubic root of 5918979709 is about 1808.9044079410.

The spelling of 5918979709 in words is "five billion, nine hundred eighteen million, nine hundred seventy-nine thousand, seven hundred nine".