9964687593378 has 32 divisors (see below), whose sum is σ = 22776674641920. Its totient is φ = 2847022866000.

The previous prime is 9964687593349. The next prime is 9964687593389. The reversal of 9964687593378 is 8733957864699.

It is a self number, because there is not a number n which added to its sum of digits gives 9964687593378.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2810503 + ... + 5275253.

It is an arithmetic number, because the mean of its divisors is an integer number (711771082560).

Almost surely, 2^{9964687593378} is an apocalyptic number.

9964687593378 is an abundant number, since it is smaller than the sum of its proper divisors (12811987048542).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9964687593378 is a wasteful number, since it uses less digits than its factorization.

9964687593378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2561022.

The product of its digits is 14814213120, while the sum is 84.

The spelling of 9964687593378 in words is "nine trillion, nine hundred sixty-four billion, six hundred eighty-seven million, five hundred ninety-three thousand, three hundred seventy-eight".