85410632249 has 2 divisors, whose sum is σ = 85410632250. Its totient is φ = 85410632248.

The previous prime is 85410632159. The next prime is 85410632269. The reversal of 85410632249 is 94223601458.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84046068649 + 1364563600 = 289907^2 + 36940^2 .

It is a cyclic number.

It is not a de Polignac number, because 85410632249 - 2⁸ = 85410631993 is a prime.

It is a super-2 number, since 2×85410632249² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (85410632269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42705316124 + 42705316125.

It is an arithmetic number, because the mean of its divisors is an integer number (42705316125).

Almost surely, 2^85410632249 is an apocalyptic number.

It is an amenable number.

85410632249 is a deficient number, since it is larger than the sum of its proper divisors (1).

85410632249 is an equidigital number, since it uses as much as digits as its factorization.

85410632249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 414720, while the sum is 44.

The spelling of 85410632249 in words is "eighty-five billion, four hundred ten million, six hundred thirty-two thousand, two hundred forty-nine".