8538715999103 has 4 divisors (see below), whose sum is σ = 8538867351960. Its totient is φ = 8538564646248.

The previous prime is 8538715999061. The next prime is 8538715999117. The reversal of 8538715999103 is 3019995178358.

It is a happy number.

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 8538715999103 - 2⁶ = 8538715999039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8535715999103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75591773 + ... + 75704646.

It is an arithmetic number, because the mean of its divisors is an integer number (2134716837990).

Almost surely, 2^{8538715999103} is an apocalyptic number.

8538715999103 is a deficient number, since it is larger than the sum of its proper divisors (151352857).

8538715999103 is a wasteful number, since it uses less digits than its factorization.

8538715999103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151352856.

The product of its (nonzero) digits is 73483200, while the sum is 68.

The spelling of 8538715999103 in words is "eight trillion, five hundred thirty-eight billion, seven hundred fifteen million, nine hundred ninety-nine thousand, one hundred three".