86749446604673 has 2 divisors, whose sum is σ = 86749446604674. Its totient is φ = 86749446604672.

The previous prime is 86749446604669. The next prime is 86749446604693. The reversal of 86749446604673 is 37640664494768.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67174547136064 + 19574899468609 = 8196008^2 + 4424353^2 .

It is a cyclic number.

It is not a de Polignac number, because 86749446604673 - 2² = 86749446604669 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 86749446604673.

It is not a weakly prime, because it can be changed into another prime (86749446604693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43374723302336 + 43374723302337.

It is an arithmetic number, because the mean of its divisors is an integer number (43374723302337).

Almost surely, 2^{86749446604673} is an apocalyptic number.

It is an amenable number.

86749446604673 is a deficient number, since it is larger than the sum of its proper divisors (1).

86749446604673 is an equidigital number, since it uses as much as digits as its factorization.

86749446604673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3511517184, while the sum is 74.

The spelling of 86749446604673 in words is "eighty-six trillion, seven hundred forty-nine billion, four hundred forty-six million, six hundred four thousand, six hundred seventy-three".