86540971903 has 2 divisors, whose sum is σ = 86540971904. Its totient is φ = 86540971902.

The previous prime is 86540971859. The next prime is 86540971969. The reversal of 86540971903 is 30917904568.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86540971903 - 2²⁹ = 86004100991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86540971403) 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, 43270485951 + 43270485952.

It is an arithmetic number, because the mean of its divisors is an integer number (43270485952).

Almost surely, 2^86540971903 is an apocalyptic number.

86540971903 is a deficient number, since it is larger than the sum of its proper divisors (1).

86540971903 is an equidigital number, since it uses as much as digits as its factorization.

86540971903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1632960, while the sum is 52.

The spelling of 86540971903 in words is "eighty-six billion, five hundred forty million, nine hundred seventy-one thousand, nine hundred three".