85776007939 has 2 divisors, whose sum is σ = 85776007940. Its totient is φ = 85776007938.

The previous prime is 85776007931. The next prime is 85776008023. The reversal of 85776007939 is 93970067758.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85776007939 - 2³ = 85776007931 is a prime.

It is not a weakly prime, because it can be changed into another prime (85776007931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42888003969 + 42888003970.

It is an arithmetic number, because the mean of its divisors is an integer number (42888003970).

Almost surely, 2^85776007939 is an apocalyptic number.

85776007939 is a deficient number, since it is larger than the sum of its proper divisors (1).

85776007939 is an equidigital number, since it uses as much as digits as its factorization.

85776007939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20003760, while the sum is 61.

The spelling of 85776007939 in words is "eighty-five billion, seven hundred seventy-six million, seven thousand, nine hundred thirty-nine".