84095477761 has 2 divisors, whose sum is σ = 84095477762. Its totient is φ = 84095477760.

The previous prime is 84095477759. The next prime is 84095477773. The reversal of 84095477761 is 16777459048.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58011612736 + 26083865025 = 240856^2 + 161505^2 .

It is a cyclic number.

It is not a de Polignac number, because 84095477761 - 2¹ = 84095477759 is a prime.

Together with 84095477759, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 84095477696 and 84095477705.

It is not a weakly prime, because it can be changed into another prime (84095477161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42047738880 + 42047738881.

It is an arithmetic number, because the mean of its divisors is an integer number (42047738881).

Almost surely, 2^84095477761 is an apocalyptic number.

It is an amenable number.

84095477761 is a deficient number, since it is larger than the sum of its proper divisors (1).

84095477761 is an equidigital number, since it uses as much as digits as its factorization.

84095477761 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11854080, while the sum is 58.

The spelling of 84095477761 in words is "eighty-four billion, ninety-five million, four hundred seventy-seven thousand, seven hundred sixty-one".