8538231715 has 16 divisors (see below), whose sum is σ = 11036063808. Its totient is φ = 6303989376.

The previous prime is 8538231697. The next prime is 8538231721. The reversal of 8538231715 is 5171328358.

It is a cyclic number.

It is not a de Polignac number, because 8538231715 - 2¹³ = 8538223523 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 519514 + ... + 535696.

It is an arithmetic number, because the mean of its divisors is an integer number (689753988).

Almost surely, 2^8538231715 is an apocalyptic number.

8538231715 is a deficient number, since it is larger than the sum of its proper divisors (2497832093).

8538231715 is a wasteful number, since it uses less digits than its factorization.

8538231715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24318.

The product of its digits is 201600, while the sum is 43.

The square root of 8538231715 is about 92402.5525350896. The cubic root of 8538231715 is about 2043.8827528478.

The spelling of 8538231715 in words is "eight billion, five hundred thirty-eight million, two hundred thirty-one thousand, seven hundred fifteen".