85284263565 has 24 divisors (see below), whose sum is σ = 147853918368. Its totient is φ = 45476367840.

The previous prime is 85284263563. The next prime is 85284263573. The reversal of 85284263565 is 56536248258.

85284263565 is a `hidden beast` number, since 8 + 5 + 284 + 2 + 6 + 356 + 5 = 666.

It is not a de Polignac number, because 85284263565 - 2¹ = 85284263563 is a prime.

It is a super-2 number, since 2×85284263565² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85284263563) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66510 + ... + 418320.

It is an arithmetic number, because the mean of its divisors is an integer number (6160579932).

Almost surely, 2^85284263565 is an apocalyptic number.

It is an amenable number.

85284263565 is a deficient number, since it is larger than the sum of its proper divisors (62569654803).

85284263565 is a wasteful number, since it uses less digits than its factorization.

85284263565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357209 (or 357206 counting only the distinct ones).

The product of its digits is 13824000, while the sum is 54.

The spelling of 85284263565 in words is "eighty-five billion, two hundred eighty-four million, two hundred sixty-three thousand, five hundred sixty-five".