85764158805 has 64 divisors (see below), whose sum is σ = 156983904000. Its totient is φ = 39632965632.

The previous prime is 85764158801. The next prime is 85764158819. The reversal of 85764158805 is 50885146758.

It is not a de Polignac number, because 85764158805 - 2² = 85764158801 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85764158801) 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 63 ways as a sum of consecutive naturals, for example, 297661 + ... + 510029.

It is an arithmetic number, because the mean of its divisors is an integer number (2452873500).

Almost surely, 2^85764158805 is an apocalyptic number.

It is an amenable number.

85764158805 is a deficient number, since it is larger than the sum of its proper divisors (71219745195).

85764158805 is a wasteful number, since it uses less digits than its factorization.

85764158805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212518.

The product of its (nonzero) digits is 10752000, while the sum is 57.

The spelling of 85764158805 in words is "eighty-five billion, seven hundred sixty-four million, one hundred fifty-eight thousand, eight hundred five".