609275442479 has 4 divisors (see below), whose sum is σ = 664664119080. Its totient is φ = 553886765880.

The previous prime is 609275442443. The next prime is 609275442499. The reversal of 609275442479 is 974244572906.

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 609275442479 - 2¹⁶ = 609275376943 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 (609275442439) 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, 27694338284 + ... + 27694338305.

It is an arithmetic number, because the mean of its divisors is an integer number (166166029770).

Almost surely, 2^609275442479 is an apocalyptic number.

609275442479 is a deficient number, since it is larger than the sum of its proper divisors (55388676601).

609275442479 is a wasteful number, since it uses less digits than its factorization.

609275442479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55388676600.

The product of its (nonzero) digits is 30481920, while the sum is 59.

The spelling of 609275442479 in words is "six hundred nine billion, two hundred seventy-five million, four hundred forty-two thousand, four hundred seventy-nine".