85773215527 has 16 divisors (see below), whose sum is σ = 88609248000. Its totient is φ = 82974144960.

The previous prime is 85773215513. The next prime is 85773215531. The reversal of 85773215527 is 72551237758.

It is a cyclic number.

It is not a de Polignac number, because 85773215527 - 2¹¹ = 85773213479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85773215027) 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 in 15 ways as a sum of consecutive naturals, for example, 4703974 + ... + 4722172.

It is an arithmetic number, because the mean of its divisors is an integer number (5538078000).

Almost surely, 2^85773215527 is an apocalyptic number.

85773215527 is a deficient number, since it is larger than the sum of its proper divisors (2836032473).

85773215527 is a wasteful number, since it uses less digits than its factorization.

85773215527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19206.

The product of its digits is 4116000, while the sum is 52.

The spelling of 85773215527 in words is "eighty-five billion, seven hundred seventy-three million, two hundred fifteen thousand, five hundred twenty-seven".