86745912947 has 2 divisors, whose sum is σ = 86745912948. Its totient is φ = 86745912946.

The previous prime is 86745912943. The next prime is 86745913117. The reversal of 86745912947 is 74921954768.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86745912947 - 2² = 86745912943 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 86745912947.

It is not a weakly prime, because it can be changed into another prime (86745912943) 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, 43372956473 + 43372956474.

It is an arithmetic number, because the mean of its divisors is an integer number (43372956474).

Almost surely, 2^86745912947 is an apocalyptic number.

86745912947 is a deficient number, since it is larger than the sum of its proper divisors (1).

86745912947 is an equidigital number, since it uses as much as digits as its factorization.

86745912947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30481920, while the sum is 62.

The spelling of 86745912947 in words is "eighty-six billion, seven hundred forty-five million, nine hundred twelve thousand, nine hundred forty-seven".