84695409077 has 2 divisors, whose sum is σ = 84695409078. Its totient is φ = 84695409076.

The previous prime is 84695409067. The next prime is 84695409089. The reversal of 84695409077 is 77090459648.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49992935281 + 34702473796 = 223591^2 + 186286^2 .

It is a cyclic number.

It is not a de Polignac number, because 84695409077 - 2⁸ = 84695408821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84695409037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42347704538 + 42347704539.

It is an arithmetic number, because the mean of its divisors is an integer number (42347704539).

Almost surely, 2^84695409077 is an apocalyptic number.

It is an amenable number.

84695409077 is a deficient number, since it is larger than the sum of its proper divisors (1).

84695409077 is an equidigital number, since it uses as much as digits as its factorization.

84695409077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15240960, while the sum is 59.

The spelling of 84695409077 in words is "eighty-four billion, six hundred ninety-five million, four hundred nine thousand, seventy-seven".