9313718987644 has 6 divisors (see below), whose sum is σ = 16299008228384. Its totient is φ = 4656859493820.

The previous prime is 9313718987623. The next prime is 9313718987669. The reversal of 9313718987644 is 4467898173139.

9313718987644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×9313718987644² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1164214873452 + ... + 1164214873459.

Almost surely, 2^{9313718987644} is an apocalyptic number.

It is an amenable number.

9313718987644 is a deficient number, since it is larger than the sum of its proper divisors (6985289240740).

9313718987644 is a wasteful number, since it uses less digits than its factorization.

9313718987644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2328429746915 (or 2328429746913 counting only the distinct ones).

The product of its digits is 219469824, while the sum is 70.

The spelling of 9313718987644 in words is "nine trillion, three hundred thirteen billion, seven hundred eighteen million, nine hundred eighty-seven thousand, six hundred forty-four".