86181690527 has 2 divisors, whose sum is σ = 86181690528. Its totient is φ = 86181690526.

The previous prime is 86181690503. The next prime is 86181690571. The reversal of 86181690527 is 72509618168.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86181690527 - 2⁸ = 86181690271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86181690827) 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, 43090845263 + 43090845264.

It is an arithmetic number, because the mean of its divisors is an integer number (43090845264).

Almost surely, 2^86181690527 is an apocalyptic number.

86181690527 is a deficient number, since it is larger than the sum of its proper divisors (1).

86181690527 is an equidigital number, since it uses as much as digits as its factorization.

86181690527 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1451520, while the sum is 53.

The spelling of 86181690527 in words is "eighty-six billion, one hundred eighty-one million, six hundred ninety thousand, five hundred twenty-seven".