609390849872 has 80 divisors (see below), whose sum is σ = 1352873410560. Its totient is φ = 260489229696.

The previous prime is 609390849857. The next prime is 609390849917. The reversal of 609390849872 is 278948093906.

It is a junction number, because it is equal to n+sod(n) for n = 609390849799 and 609390849808.

It is a congruent number.

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, 170076593 + ... + 170080175.

It is an arithmetic number, because the mean of its divisors is an integer number (16910917632).

Almost surely, 2^609390849872 is an apocalyptic number.

It is an amenable number.

609390849872 is an abundant number, since it is smaller than the sum of its proper divisors (743482560688).

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

609390849872 is a wasteful number, since it uses less digits than its factorization.

609390849872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7120 (or 7114 counting only the distinct ones).

The product of its (nonzero) digits is 47029248, while the sum is 65.

The spelling of 609390849872 in words is "six hundred nine billion, three hundred ninety million, eight hundred forty-nine thousand, eight hundred seventy-two".