85336497787 has 2 divisors, whose sum is σ = 85336497788. Its totient is φ = 85336497786.

The previous prime is 85336497767. The next prime is 85336497803. The reversal of 85336497787 is 78779463358.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85336497787 is a prime.

It is not a weakly prime, because it can be changed into another prime (85336497767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42668248893 + 42668248894.

It is an arithmetic number, because the mean of its divisors is an integer number (42668248894).

Almost surely, 2^85336497787 is an apocalyptic number.

85336497787 is a deficient number, since it is larger than the sum of its proper divisors (1).

85336497787 is an equidigital number, since it uses as much as digits as its factorization.

85336497787 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 213373440, while the sum is 67.

The spelling of 85336497787 in words is "eighty-five billion, three hundred thirty-six million, four hundred ninety-seven thousand, seven hundred eighty-seven".