609799997906 has 8 divisors (see below), whose sum is σ = 997854542064. Its totient is φ = 277181817220.

The previous prime is 609799997903. The next prime is 609799997953.

It is a happy number.

609799997906 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (609799997903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13859090840 + ... + 13859090883.

It is an arithmetic number, because the mean of its divisors is an integer number (124731817758).

Almost surely, 2^609799997906 is an apocalyptic number.

609799997906 is a deficient number, since it is larger than the sum of its proper divisors (388054544158).

609799997906 is a wasteful number, since it uses less digits than its factorization.

609799997906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27718181736.

The product of its (nonzero) digits is 937461924, while the sum is 80.

The spelling of 609799997906 in words is "six hundred nine billion, seven hundred ninety-nine million, nine hundred ninety-seven thousand, nine hundred six".