8146539399 has 4 divisors (see below), whose sum is σ = 10862052536. Its totient is φ = 5431026264.

The previous prime is 8146539371. The next prime is 8146539493. The reversal of 8146539399 is 9939356418.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 8146539399 - 2⁸ = 8146539143 is a prime.

It is a super-2 number, since 2×8146539399² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8146539319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1357756564 + ... + 1357756569.

It is an arithmetic number, because the mean of its divisors is an integer number (2715513134).

Almost surely, 2^8146539399 is an apocalyptic number.

8146539399 is a deficient number, since it is larger than the sum of its proper divisors (2715513137).

8146539399 is a wasteful number, since it uses less digits than its factorization.

8146539399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2715513136.

The product of its digits is 6298560, while the sum is 57.

The square root of 8146539399 is about 90258.1818950504. The cubic root of 8146539399 is about 2012.1378044172.

The spelling of 8146539399 in words is "eight billion, one hundred forty-six million, five hundred thirty-nine thousand, three hundred ninety-nine".