9890891386410 has 64 divisors (see below), whose sum is σ = 24040356871680. Its totient is φ = 2603996129280.

The previous prime is 9890891386403. The next prime is 9890891386421. The reversal of 9890891386410 is 146831980989.

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 31 ways as a sum of consecutive naturals, for example, 34366264 + ... + 34652876.

It is an arithmetic number, because the mean of its divisors is an integer number (375630576120).

Almost surely, 2^{9890891386410} is an apocalyptic number.

9890891386410 is an abundant number, since it is smaller than the sum of its proper divisors (14149465485270).

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

9890891386410 is a wasteful number, since it uses less digits than its factorization.

9890891386410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301263.

The product of its (nonzero) digits is 26873856, while the sum is 66.

The spelling of 9890891386410 in words is "nine trillion, eight hundred ninety billion, eight hundred ninety-one million, three hundred eighty-six thousand, four hundred ten".