9876706874465 has 8 divisors (see below), whose sum is σ = 11856061828968. Its totient is φ = 7898689779840.

The previous prime is 9876706874449. The next prime is 9876706874513. The reversal of 9876706874465 is 5644786076789.

It can be written as a sum of positive squares in 4 ways, for example, as 2463028915216 + 7413677959249 = 1569404^2 + 2722807^2 .

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

It is not a de Polignac number, because 9876706874465 - 2⁴ = 9876706874449 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 334448726 + ... + 334478255.

It is an arithmetic number, because the mean of its divisors is an integer number (1482007728621).

Almost surely, 2^{9876706874465} is an apocalyptic number.

It is an amenable number.

9876706874465 is a deficient number, since it is larger than the sum of its proper divisors (1979354954503).

9876706874465 is a wasteful number, since it uses less digits than its factorization.

9876706874465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668929939.

The product of its (nonzero) digits is 3413975040, while the sum is 77.

The spelling of 9876706874465 in words is "nine trillion, eight hundred seventy-six billion, seven hundred six million, eight hundred seventy-four thousand, four hundred sixty-five".