609995969938 has 8 divisors (see below), whose sum is σ = 916813029888. Its totient is φ = 304391626644.

The previous prime is 609995969917. The next prime is 609995969941. The reversal of 609995969938 is 839969599906.

It is a happy number.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 303177906 + ... + 303179917.

It is an arithmetic number, because the mean of its divisors is an integer number (114601628736).

Almost surely, 2^609995969938 is an apocalyptic number.

609995969938 is a deficient number, since it is larger than the sum of its proper divisors (306817059950).

609995969938 is a wasteful number, since it uses less digits than its factorization.

609995969938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606358328.

The product of its (nonzero) digits is 2295825120, while the sum is 82.

The spelling of 609995969938 in words is "six hundred nine billion, nine hundred ninety-five million, nine hundred sixty-nine thousand, nine hundred thirty-eight".