10002178328787 has 12 divisors (see below), whose sum is σ = 14447758230360. Its totient is φ = 6668041665408.

The previous prime is 10002178328719. The next prime is 10002178328803. The reversal of 10002178328787 is 78782387120001.

It is a de Polignac number, because none of the positive numbers 2^k-10002178328787 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10002178328687) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 5609118 + ... + 7174019.

It is an arithmetic number, because the mean of its divisors is an integer number (1203979852530).

Almost surely, 2^{10002178328787} is an apocalyptic number.

10002178328787 is a deficient number, since it is larger than the sum of its proper divisors (4445579901573).

10002178328787 is a wasteful number, since it uses less digits than its factorization.

10002178328787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12870082 (or 12870079 counting only the distinct ones).

The product of its (nonzero) digits is 2107392, while the sum is 54.

The spelling of 10002178328787 in words is "ten trillion, two billion, one hundred seventy-eight million, three hundred twenty-eight thousand, seven hundred eighty-seven".