609137625493 has 8 divisors (see below), whose sum is σ = 655542518040. Its totient is φ = 563907540480.

The previous prime is 609137625491. The next prime is 609137625511. The reversal of 609137625493 is 394526731906.

It can be written as a sum of positive squares in 4 ways, for example, as 34462952164 + 574674673329 = 185642^2 + 758073^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 609137625493 - 2¹ = 609137625491 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 (609137625491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 293700808 + ... + 293702881.

It is an arithmetic number, because the mean of its divisors is an integer number (81942814755).

Almost surely, 2^609137625493 is an apocalyptic number.

It is an amenable number.

609137625493 is a deficient number, since it is larger than the sum of its proper divisors (46404892547).

609137625493 is a wasteful number, since it uses less digits than its factorization.

609137625493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587403767.

The product of its (nonzero) digits is 7348320, while the sum is 55.

The spelling of 609137625493 in words is "six hundred nine billion, one hundred thirty-seven million, six hundred twenty-five thousand, four hundred ninety-three".