8538461839 has 4 divisors (see below), whose sum is σ = 8539445200. Its totient is φ = 8537478480.

The previous prime is 8538461821. The next prime is 8538461849. The reversal of 8538461839 is 9381648358.

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 8538461839 - 2⁵ = 8538461807 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8538461839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8538461819) 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, 478539 + ... + 496060.

It is an arithmetic number, because the mean of its divisors is an integer number (2134861300).

Almost surely, 2^8538461839 is an apocalyptic number.

8538461839 is a deficient number, since it is larger than the sum of its proper divisors (983361).

8538461839 is an equidigital number, since it uses as much as digits as its factorization.

8538461839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 983360.

The product of its digits is 4976640, while the sum is 55.

The square root of 8538461839 is about 92403.7977520405. The cubic root of 8538461839 is about 2043.9011150515.

The spelling of 8538461839 in words is "eight billion, five hundred thirty-eight million, four hundred sixty-one thousand, eight hundred thirty-nine".