609799512 has 192 divisors, whose sum is σ = 1877990400. Its totient is φ = 164263680.

The previous prime is 609799507. The next prime is 609799523. The reversal of 609799512 is 215997906.

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 47 ways as a sum of consecutive naturals, for example, 1567414 + ... + 1567802.

It is an arithmetic number, because the mean of its divisors is an integer number (9781200).

Almost surely, 2^609799512 is an apocalyptic number.

609799512 is a gapful number since it is divisible by the number (62) 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 609799512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (938995200).

609799512 is an abundant number, since it is smaller than the sum of its proper divisors (1268190888).

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

609799512 is a wasteful number, since it uses less digits than its factorization.

609799512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486 (or 475 counting only the distinct ones).

The product of its (nonzero) digits is 306180, while the sum is 48.

The square root of 609799512 is about 24694.1189759829. The cubic root of 609799512 is about 847.9996847928. Note that the first 3 decimals are identical.

The spelling of 609799512 in words is "six hundred nine million, seven hundred ninety-nine thousand, five hundred twelve".