8488139917 has 2 divisors, whose sum is σ = 8488139918. Its totient is φ = 8488139916.

The previous prime is 8488139873. The next prime is 8488139941. The reversal of 8488139917 is 7199318848.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6273590436 + 2214549481 = 79206^2 + 47059^2 .

It is a cyclic number.

It is not a de Polignac number, because 8488139917 - 2¹⁵ = 8488107149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8488139987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4244069958 + 4244069959.

It is an arithmetic number, because the mean of its divisors is an integer number (4244069959).

Almost surely, 2^8488139917 is an apocalyptic number.

It is an amenable number.

8488139917 is a deficient number, since it is larger than the sum of its proper divisors (1).

8488139917 is an equidigital number, since it uses as much as digits as its factorization.

8488139917 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3483648, while the sum is 58.

The square root of 8488139917 is about 92131.1017897865. The cubic root of 8488139917 is about 2039.8779176109.

The spelling of 8488139917 in words is "eight billion, four hundred eighty-eight million, one hundred thirty-nine thousand, nine hundred seventeen".