9875956613 has 4 divisors (see below), whose sum is σ = 9877765260. Its totient is φ = 9874147968.

The previous prime is 9875956577. The next prime is 9875956619. The reversal of 9875956613 is 3166595789.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9815459329 + 60497284 = 99073^2 + 7778^2 .

It is a cyclic number.

It is not a de Polignac number, because 9875956613 - 2¹⁰ = 9875955589 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 (9875956619) 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, 896108 + ... + 907061.

It is an arithmetic number, because the mean of its divisors is an integer number (2469441315).

Almost surely, 2^9875956613 is an apocalyptic number.

It is an amenable number.

9875956613 is a deficient number, since it is larger than the sum of its proper divisors (1808647).

9875956613 is a wasteful number, since it uses less digits than its factorization.

9875956613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1808646.

The product of its digits is 12247200, while the sum is 59.

The square root of 9875956613 is about 99377.8476975629. The cubic root of 9875956613 is about 2145.4894884700.

The spelling of 9875956613 in words is "nine billion, eight hundred seventy-five million, nine hundred fifty-six thousand, six hundred thirteen".