86311788671 has 2 divisors, whose sum is σ = 86311788672. Its totient is φ = 86311788670.

The previous prime is 86311788643. The next prime is 86311788701. The reversal of 86311788671 is 17688711368.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86311788671 - 2²² = 86307594367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86311788611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43155894335 + 43155894336.

It is an arithmetic number, because the mean of its divisors is an integer number (43155894336).

Almost surely, 2^86311788671 is an apocalyptic number.

86311788671 is a deficient number, since it is larger than the sum of its proper divisors (1).

86311788671 is an equidigital number, since it uses as much as digits as its factorization.

86311788671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2709504, while the sum is 56.

The spelling of 86311788671 in words is "eighty-six billion, three hundred eleven million, seven hundred eighty-eight thousand, six hundred seventy-one".