617962969813 has 4 divisors (see below), whose sum is σ = 706243394080. Its totient is φ = 529682545548.

The previous prime is 617962969777. The next prime is 617962969823. The reversal of 617962969813 is 318969269716.

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 617962969813 - 2²⁹ = 617426098901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (617962969823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44140212123 + ... + 44140212136.

It is an arithmetic number, because the mean of its divisors is an integer number (176560848520).

Almost surely, 2^617962969813 is an apocalyptic number.

It is an amenable number.

617962969813 is a deficient number, since it is larger than the sum of its proper divisors (88280424267).

617962969813 is an equidigital number, since it uses as much as digits as its factorization.

617962969813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88280424266.

The product of its digits is 52907904, while the sum is 67.

The spelling of 617962969813 in words is "six hundred seventeen billion, nine hundred sixty-two million, nine hundred sixty-nine thousand, eight hundred thirteen".