5815818479 has 4 divisors (see below), whose sum is σ = 6068680176. Its totient is φ = 5562956784.

The previous prime is 5815818451. The next prime is 5815818517. The reversal of 5815818479 is 9748185185.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5815818479 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 (5815818409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126430814 + ... + 126430859.

It is an arithmetic number, because the mean of its divisors is an integer number (1517170044).

Almost surely, 2^5815818479 is an apocalyptic number.

5815818479 is a deficient number, since it is larger than the sum of its proper divisors (252861697).

5815818479 is a wasteful number, since it uses less digits than its factorization.

5815818479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252861696.

The product of its digits is 3225600, while the sum is 56.

The square root of 5815818479 is about 76261.5137471058. The cubic root of 5815818479 is about 1798.3336923960. Note that the first 3 decimals are identical.

The spelling of 5815818479 in words is "five billion, eight hundred fifteen million, eight hundred eighteen thousand, four hundred seventy-nine".