613659420277 has 4 divisors (see below), whose sum is σ = 621427261120. Its totient is φ = 605891579436.

The previous prime is 613659420233. The next prime is 613659420289. The reversal of 613659420277 is 772024956316.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 613659420277 - 2⁷ = 613659420149 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 (613659430277) 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, 3883920303 + ... + 3883920460.

It is an arithmetic number, because the mean of its divisors is an integer number (155356815280).

Almost surely, 2^613659420277 is an apocalyptic number.

It is an amenable number.

613659420277 is a deficient number, since it is larger than the sum of its proper divisors (7767840843).

613659420277 is an equidigital number, since it uses as much as digits as its factorization.

613659420277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7767840842.

The product of its (nonzero) digits is 3810240, while the sum is 52.

The spelling of 613659420277 in words is "six hundred thirteen billion, six hundred fifty-nine million, four hundred twenty thousand, two hundred seventy-seven".