609831212816 has 40 divisors (see below), whose sum is σ = 1351665958080. Its totient is φ = 261099702144.

The previous prime is 609831212797. The next prime is 609831212849. The reversal of 609831212816 is 618212138906.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2557571 + ... + 2785826.

It is an arithmetic number, because the mean of its divisors is an integer number (33791648952).

Almost surely, 2^609831212816 is an apocalyptic number.

It is an amenable number.

609831212816 is an abundant number, since it is smaller than the sum of its proper divisors (741834745264).

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

609831212816 is a wasteful number, since it uses less digits than its factorization.

609831212816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5344431 (or 5344425 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 47.

The spelling of 609831212816 in words is "six hundred nine billion, eight hundred thirty-one million, two hundred twelve thousand, eight hundred sixteen".