7933986876449 has 2 divisors, whose sum is σ = 7933986876450. Its totient is φ = 7933986876448.

The previous prime is 7933986876437. The next prime is 7933986876451. The reversal of 7933986876449 is 9446786893397.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5945097198049 + 1988889678400 = 2438257^2 + 1410280^2 .

It is a cyclic number.

It is not a de Polignac number, because 7933986876449 - 2⁴ = 7933986876433 is a prime.

Together with 7933986876451, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7933986876499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3966993438224 + 3966993438225.

It is an arithmetic number, because the mean of its divisors is an integer number (3966993438225).

Almost surely, 2^{7933986876449} is an apocalyptic number.

It is an amenable number.

7933986876449 is a deficient number, since it is larger than the sum of its proper divisors (1).

7933986876449 is an equidigital number, since it uses as much as digits as its factorization.

7933986876449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11851370496, while the sum is 83.

The spelling of 7933986876449 in words is "seven trillion, nine hundred thirty-three billion, nine hundred eighty-six million, eight hundred seventy-six thousand, four hundred forty-nine".