5591213992 has 96 divisors (see below), whose sum is σ = 13292445600. Its totient is φ = 2185094016.

The previous prime is 5591213987. The next prime is 5591214017. The reversal of 5591213992 is 2993121955.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 416359 + ... + 429577.

It is an arithmetic number, because the mean of its divisors is an integer number (138462975).

Almost surely, 2^5591213992 is an apocalyptic number.

5591213992 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5591213992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6646222800).

5591213992 is an abundant number, since it is smaller than the sum of its proper divisors (7701231608).

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

5591213992 is a wasteful number, since it uses less digits than its factorization.

5591213992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13335 (or 13324 counting only the distinct ones).

The product of its digits is 218700, while the sum is 46.

The square root of 5591213992 is about 74774.4207065491. The cubic root of 5591213992 is about 1774.8788112195.

The spelling of 5591213992 in words is "five billion, five hundred ninety-one million, two hundred thirteen thousand, nine hundred ninety-two".