7490779872439 has 2 divisors, whose sum is σ = 7490779872440. Its totient is φ = 7490779872438.

The previous prime is 7490779872383. The next prime is 7490779872463. The reversal of 7490779872439 is 9342789770947.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7490779872439 - 2²⁵ = 7490746318007 is a prime.

It is a super-2 number, since 2×7490779872439² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7490779872239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3745389936219 + 3745389936220.

It is an arithmetic number, because the mean of its divisors is an integer number (3745389936220).

Almost surely, 2^{7490779872439} is an apocalyptic number.

7490779872439 is a deficient number, since it is larger than the sum of its proper divisors (1).

7490779872439 is an equidigital number, since it uses as much as digits as its factorization.

7490779872439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344252672, while the sum is 76.

The spelling of 7490779872439 in words is "seven trillion, four hundred ninety billion, seven hundred seventy-nine million, eight hundred seventy-two thousand, four hundred thirty-nine".