5578915865911 has 4 divisors (see below), whose sum is σ = 5580149325192. Its totient is φ = 5577682406632.

The previous prime is 5578915865909. The next prime is 5578915865917. The reversal of 5578915865911 is 1195685198755.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 5578915865911 - 2¹ = 5578915865909 is a prime.

It is a super-2 number, since 2×5578915865911² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5578915865917) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 616722856 + ... + 616731901.

It is an arithmetic number, because the mean of its divisors is an integer number (1395037331298).

Almost surely, 2^{5578915865911} is an apocalyptic number.

5578915865911 is a deficient number, since it is larger than the sum of its proper divisors (1233459281).

5578915865911 is a wasteful number, since it uses less digits than its factorization.

5578915865911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1233459280.

The product of its digits is 136080000, while the sum is 70.

The spelling of 5578915865911 in words is "five trillion, five hundred seventy-eight billion, nine hundred fifteen million, eight hundred sixty-five thousand, nine hundred eleven".