9891400202113 has 16 divisors (see below), whose sum is σ = 10111751395200. Its totient is φ = 9673532878464.

The previous prime is 9891400202107. The next prime is 9891400202191. The reversal of 9891400202113 is 3112020041989.

It is a happy number.

9891400202113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9891400202113 is a prime.

It is a super-2 number, since 2×9891400202113² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9891400202513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21564445 + ... + 22018357.

It is an arithmetic number, because the mean of its divisors is an integer number (631984462200).

Almost surely, 2^{9891400202113} is an apocalyptic number.

It is an amenable number.

9891400202113 is a deficient number, since it is larger than the sum of its proper divisors (220351193087).

9891400202113 is a wasteful number, since it uses less digits than its factorization.

9891400202113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456648.

The product of its (nonzero) digits is 31104, while the sum is 40.

It can be divided in two parts, 9891 and 400202113, that added together give a palindrome (400212004).

The spelling of 9891400202113 in words is "nine trillion, eight hundred ninety-one billion, four hundred million, two hundred two thousand, one hundred thirteen".