9940368547 has 4 divisors (see below), whose sum is σ = 9943875216. Its totient is φ = 9936861880.

The previous prime is 9940368527. The next prime is 9940368553. The reversal of 9940368547 is 7458630499.

9940368547 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9940368547 - 2³¹ = 7792884899 is a prime.

It is a super-3 number, since 3×9940368547³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9940368527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1749079 + ... + 1754752.

It is an arithmetic number, because the mean of its divisors is an integer number (2485968804).

Almost surely, 2^9940368547 is an apocalyptic number.

9940368547 is a deficient number, since it is larger than the sum of its proper divisors (3506669).

9940368547 is a wasteful number, since it uses less digits than its factorization.

9940368547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3506668.

The product of its (nonzero) digits is 6531840, while the sum is 55.

The square root of 9940368547 is about 99701.3969159911. The cubic root of 9940368547 is about 2150.1437471584.

The spelling of 9940368547 in words is "nine billion, nine hundred forty million, three hundred sixty-eight thousand, five hundred forty-seven".