7900911871 has 2 divisors, whose sum is σ = 7900911872. Its totient is φ = 7900911870.

The previous prime is 7900911859. The next prime is 7900911917. The reversal of 7900911871 is 1781190097.

It is a weak prime.

It is an emirp because it is prime and its reverse (1781190097) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7900911871 - 2¹¹ = 7900909823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7900911841) 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, 3950455935 + 3950455936.

It is an arithmetic number, because the mean of its divisors is an integer number (3950455936).

Almost surely, 2^7900911871 is an apocalyptic number.

7900911871 is a deficient number, since it is larger than the sum of its proper divisors (1).

7900911871 is an equidigital number, since it uses as much as digits as its factorization.

7900911871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31752, while the sum is 43.

The square root of 7900911871 is about 88887.0737002856. The cubic root of 7900911871 is about 1991.7083275059.

The spelling of 7900911871 in words is "seven billion, nine hundred million, nine hundred eleven thousand, eight hundred seventy-one".