2478996539 has 2 divisors, whose sum is σ = 2478996540. Its totient is φ = 2478996538.

The previous prime is 2478996523. The next prime is 2478996587. The reversal of 2478996539 is 9356998742.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2478996539 - 2⁴ = 2478996523 is a prime.

It is a super-2 number, since 2×2478996539² = 12290847680747957042, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2478992539) 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 as a sum of consecutive naturals, namely, 1239498269 + 1239498270.

It is an arithmetic number, because the mean of its divisors is an integer number (1239498270).

Almost surely, 2^2478996539 is an apocalyptic number.

2478996539 is a deficient number, since it is larger than the sum of its proper divisors (1).

2478996539 is an equidigital number, since it uses as much as digits as its factorization.

2478996539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29393280, while the sum is 62.

The square root of 2478996539 is about 49789.5223817220. The cubic root of 2478996539 is about 1353.3973033426.

The spelling of 2478996539 in words is "two billion, four hundred seventy-eight million, nine hundred ninety-six thousand, five hundred thirty-nine".