871617432487 has 2 divisors, whose sum is σ = 871617432488. Its totient is φ = 871617432486.

The previous prime is 871617432481. The next prime is 871617432523. The reversal of 871617432487 is 784234716178.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 871617432487 - 2³ = 871617432479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (871617432481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435808716243 + 435808716244.

It is an arithmetic number, because the mean of its divisors is an integer number (435808716244).

Almost surely, 2^871617432487 is an apocalyptic number.

871617432487 is a deficient number, since it is larger than the sum of its proper divisors (1).

871617432487 is an equidigital number, since it uses as much as digits as its factorization.

871617432487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12644352, while the sum is 58.

The spelling of 871617432487 in words is "eight hundred seventy-one billion, six hundred seventeen million, four hundred thirty-two thousand, four hundred eighty-seven".