609216568 has 8 divisors (see below), whose sum is σ = 1142281080. Its totient is φ = 304608280.

The previous prime is 609216563. The next prime is 609216593. The reversal of 609216568 is 865612906.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×609216568² = 742289653451397248, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (609216563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38076028 + ... + 38076043.

It is an arithmetic number, because the mean of its divisors is an integer number (142785135).

Almost surely, 2^609216568 is an apocalyptic number.

It is an amenable number.

609216568 is a deficient number, since it is larger than the sum of its proper divisors (533064512).

609216568 is a wasteful number, since it uses less digits than its factorization.

609216568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76152077 (or 76152073 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 609216568 is about 24682.3128575910. The cubic root of 609216568 is about 847.7293806878.

The spelling of 609216568 in words is "six hundred nine million, two hundred sixteen thousand, five hundred sixty-eight".