971855038711 has 2 divisors, whose sum is σ = 971855038712. Its totient is φ = 971855038710.

The previous prime is 971855038691. The next prime is 971855038717. The reversal of 971855038711 is 117830558179.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-971855038711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (971855038717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 485927519355 + 485927519356.

It is an arithmetic number, because the mean of its divisors is an integer number (485927519356).

Almost surely, 2^971855038711 is an apocalyptic number.

971855038711 is a deficient number, since it is larger than the sum of its proper divisors (1).

971855038711 is an equidigital number, since it uses as much as digits as its factorization.

971855038711 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2116800, while the sum is 55.

The spelling of 971855038711 in words is "nine hundred seventy-one billion, eight hundred fifty-five million, thirty-eight thousand, seven hundred eleven".