609140735999 has 4 divisors (see below), whose sum is σ = 609628440000. Its totient is φ = 608653032000.

The previous prime is 609140735969. The next prime is 609140736019. The reversal of 609140735999 is 999537041906.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 609140735999 - 2²⁴ = 609123958783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (609140735969) 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, 243850127 + ... + 243852624.

It is an arithmetic number, because the mean of its divisors is an integer number (152407110000).

Almost surely, 2^609140735999 is an apocalyptic number.

609140735999 is a deficient number, since it is larger than the sum of its proper divisors (487704001).

609140735999 is a wasteful number, since it uses less digits than its factorization.

609140735999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487704000.

The product of its (nonzero) digits is 16533720, while the sum is 62.

The spelling of 609140735999 in words is "six hundred nine billion, one hundred forty million, seven hundred thirty-five thousand, nine hundred ninety-nine".