5997321512 has 64 divisors (see below), whose sum is σ = 13884998400. Its totient is φ = 2364848640.

The previous prime is 5997321509. The next prime is 5997321559. The reversal of 5997321512 is 2151237995.

It is a happy number.

It is a super-2 number, since 2×5997321512² = 71935730636595932288, which contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 213164 + ... + 239652.

It is an arithmetic number, because the mean of its divisors is an integer number (216953100).

Almost surely, 2^5997321512 is an apocalyptic number.

5997321512 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 5997321512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6942499200).

5997321512 is an abundant number, since it is smaller than the sum of its proper divisors (7887676888).

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

5997321512 is a wasteful number, since it uses less digits than its factorization.

5997321512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26826 (or 26822 counting only the distinct ones).

The product of its digits is 170100, while the sum is 44.

The square root of 5997321512 is about 77442.3754284436. The cubic root of 5997321512 is about 1816.8501561579.

The spelling of 5997321512 in words is "five billion, nine hundred ninety-seven million, three hundred twenty-one thousand, five hundred twelve".