84773236109 has 2 divisors, whose sum is σ = 84773236110. Its totient is φ = 84773236108.

The previous prime is 84773236103. The next prime is 84773236117. The reversal of 84773236109 is 90163237748.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54358922500 + 30414313609 = 233150^2 + 174397^2 .

It is a cyclic number.

It is not a de Polignac number, because 84773236109 - 2⁸ = 84773235853 is a prime.

It is a super-2 number, since 2×84773236109² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84773236103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42386618054 + 42386618055.

It is an arithmetic number, because the mean of its divisors is an integer number (42386618055).

Almost surely, 2^84773236109 is an apocalyptic number.

It is an amenable number.

84773236109 is a deficient number, since it is larger than the sum of its proper divisors (1).

84773236109 is an equidigital number, since it uses as much as digits as its factorization.

84773236109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1524096, while the sum is 50.

The spelling of 84773236109 in words is "eighty-four billion, seven hundred seventy-three million, two hundred thirty-six thousand, one hundred nine".