9138916345915 has 4 divisors (see below), whose sum is σ = 10966699615104. Its totient is φ = 7311133076728.

The previous prime is 9138916345879. The next prime is 9138916345931. The reversal of 9138916345915 is 5195436198319.

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 9138916345915 - 2³⁷ = 9001477392443 is a prime.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 913891634587 + ... + 913891634596.

It is an arithmetic number, because the mean of its divisors is an integer number (2741674903776).

Almost surely, 2^{9138916345915} is an apocalyptic number.

9138916345915 is a deficient number, since it is larger than the sum of its proper divisors (1827783269189).

9138916345915 is a wasteful number, since it uses less digits than its factorization.

9138916345915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1827783269188.

The product of its digits is 31492800, while the sum is 64.

The spelling of 9138916345915 in words is "nine trillion, one hundred thirty-eight billion, nine hundred sixteen million, three hundred forty-five thousand, nine hundred fifteen".