9138643834507 has 8 divisors (see below), whose sum is σ = 9981938341872. Its totient is φ = 8297434111200.

The previous prime is 9138643834469. The next prime is 9138643834517. The reversal of 9138643834507 is 7054383468319.

It is a happy number.

9138643834507 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9138643834507 is a prime.

It is a super-2 number, since 2×9138643834507² (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 (9138643834517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 521186844 + ... + 521204377.

It is an arithmetic number, because the mean of its divisors is an integer number (1247742292734).

Almost surely, 2^{9138643834507} is an apocalyptic number.

9138643834507 is a deficient number, since it is larger than the sum of its proper divisors (843294507365).

9138643834507 is a wasteful number, since it uses less digits than its factorization.

9138643834507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1042392029.

The product of its (nonzero) digits is 52254720, while the sum is 61.

The spelling of 9138643834507 in words is "nine trillion, one hundred thirty-eight billion, six hundred forty-three million, eight hundred thirty-four thousand, five hundred seven".