9779135253605 has 8 divisors (see below), whose sum is σ = 12245178056832. Its totient is φ = 7483164367888.

The previous prime is 9779135253583. The next prime is 9779135253607. The reversal of 9779135253605 is 5063525319779.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9779135253605 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9779135253607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42517979249 + ... + 42517979478.

It is an arithmetic number, because the mean of its divisors is an integer number (1530647257104).

Almost surely, 2^{9779135253605} is an apocalyptic number.

It is an amenable number.

9779135253605 is a deficient number, since it is larger than the sum of its proper divisors (2466042803227).

9779135253605 is a wasteful number, since it uses less digits than its factorization.

9779135253605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85035958755.

The product of its (nonzero) digits is 53581500, while the sum is 62.

The spelling of 9779135253605 in words is "nine trillion, seven hundred seventy-nine billion, one hundred thirty-five million, two hundred fifty-three thousand, six hundred five".