609831212817 has 16 divisors (see below), whose sum is σ = 853097223680. Its totient is φ = 386989660800.

The previous prime is 609831212797. The next prime is 609831212849. The reversal of 609831212817 is 718212138906.

It is not a de Polignac number, because 609831212817 - 2⁷ = 609831212689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (609831211817) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53742892 + ... + 53754237.

It is an arithmetic number, because the mean of its divisors is an integer number (53318576480).

Almost surely, 2^609831212817 is an apocalyptic number.

It is an amenable number.

609831212817 is a deficient number, since it is larger than the sum of its proper divisors (243266010863).

609831212817 is a wasteful number, since it uses less digits than its factorization.

609831212817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107497224.

The product of its (nonzero) digits is 290304, while the sum is 48.

The spelling of 609831212817 in words is "six hundred nine billion, eight hundred thirty-one million, two hundred twelve thousand, eight hundred seventeen".