86939309783 has 2 divisors, whose sum is σ = 86939309784. Its totient is φ = 86939309782.

The previous prime is 86939309771. The next prime is 86939309797. The reversal of 86939309783 is 38790393968.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86939309783 - 2⁶ = 86939309719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86939309713) 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, 43469654891 + 43469654892.

It is an arithmetic number, because the mean of its divisors is an integer number (43469654892).

Almost surely, 2^86939309783 is an apocalyptic number.

86939309783 is a deficient number, since it is larger than the sum of its proper divisors (1).

86939309783 is an equidigital number, since it uses as much as digits as its factorization.

86939309783 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52907904, while the sum is 65.

The spelling of 86939309783 in words is "eighty-six billion, nine hundred thirty-nine million, three hundred nine thousand, seven hundred eighty-three".