5215823418 has 64 divisors (see below), whose sum is σ = 11968104960. Its totient is φ = 1502048448.

The previous prime is 5215823401. The next prime is 5215823429. The reversal of 5215823418 is 8143285125.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 101805 + ... + 144207.

It is an arithmetic number, because the mean of its divisors is an integer number (187001640).

Almost surely, 2^5215823418 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5215823418, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5984052480).

5215823418 is an abundant number, since it is smaller than the sum of its proper divisors (6752281542).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5215823418 is a wasteful number, since it uses less digits than its factorization.

5215823418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42523.

The product of its digits is 76800, while the sum is 39.

The square root of 5215823418 is about 72220.6578341682. The cubic root of 5215823418 is about 1734.2337214176.

The spelling of 5215823418 in words is "five billion, two hundred fifteen million, eight hundred twenty-three thousand, four hundred eighteen".