85585574623 has 2 divisors, whose sum is σ = 85585574624. Its totient is φ = 85585574622.

The previous prime is 85585574621. The next prime is 85585574629. The reversal of 85585574623 is 32647558558.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85585574623 - 2¹ = 85585574621 is a prime.

Together with 85585574621, it forms a pair of twin primes.

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 pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42792787311 + 42792787312.

It is an arithmetic number, because the mean of its divisors is an integer number (42792787312).

Almost surely, 2^85585574623 is an apocalyptic number.

85585574623 is a deficient number, since it is larger than the sum of its proper divisors (1).

85585574623 is an equidigital number, since it uses as much as digits as its factorization.

85585574623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320000, while the sum is 58.

The spelling of 85585574623 in words is "eighty-five billion, five hundred eighty-five million, five hundred seventy-four thousand, six hundred twenty-three".