5091213312 has 240 divisors, whose sum is σ = 15995538720. Its totient is φ = 1594884096.

The previous prime is 5091213307. The next prime is 5091213403. The reversal of 5091213312 is 2133121905.

5091213312 is a `hidden beast` number, since 50 + 91 + 213 + 312 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7519918 + ... + 7520594.

It is an arithmetic number, because the mean of its divisors is an integer number (66648078).

Almost surely, 2^5091213312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5091213312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7997769360).

5091213312 is an abundant number, since it is smaller than the sum of its proper divisors (10904325408).

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

5091213312 is an equidigital number, since it uses as much as digits as its factorization.

5091213312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731 (or 699 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 5091213312 is about 71352.7386440072. The cubic root of 5091213312 is about 1720.3115210041.

The spelling of 5091213312 in words is "five billion, ninety-one million, two hundred thirteen thousand, three hundred twelve".