85585574629 has 2 divisors, whose sum is σ = 85585574630. Its totient is φ = 85585574628.

The previous prime is 85585574623. The next prime is 85585574671. The reversal of 85585574629 is 92647558558.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49460870404 + 36124704225 = 222398^2 + 190065^2 .

It is a cyclic number.

It is not a de Polignac number, because 85585574629 - 2³ = 85585574621 is a prime.

It is a super-2 number, since 2×85585574629² (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 (85585574621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42792787314 + 42792787315.

It is an arithmetic number, because the mean of its divisors is an integer number (42792787315).

Almost surely, 2^85585574629 is an apocalyptic number.

It is an amenable number.

85585574629 is a deficient number, since it is larger than the sum of its proper divisors (1).

85585574629 is an equidigital number, since it uses as much as digits as its factorization.

85585574629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960000, while the sum is 64.

The spelling of 85585574629 in words is "eighty-five billion, five hundred eighty-five million, five hundred seventy-four thousand, six hundred twenty-nine".