609172367616 has 432 divisors, whose sum is σ = 1864665653760. Its totient is φ = 190992384000.

The previous prime is 609172367549. The next prime is 609172367627. The reversal of 609172367616 is 616763271906.

It is a happy number.

609172367616 is a `hidden beast` number, since 6 + 0 + 9 + 17 + 2 + 3 + 6 + 7 + 616 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 387760111 + ... + 387761681.

It is an arithmetic number, because the mean of its divisors is an integer number (4316355680).

Almost surely, 2^609172367616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 609172367616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (932332826880).

609172367616 is an abundant number, since it is smaller than the sum of its proper divisors (1255493286144).

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

609172367616 is a wasteful number, since it uses less digits than its factorization.

609172367616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1774 (or 1757 counting only the distinct ones).

The product of its (nonzero) digits is 3429216, while the sum is 54.

The spelling of 609172367616 in words is "six hundred nine billion, one hundred seventy-two million, three hundred sixty-seven thousand, six hundred sixteen".