85705264579 has 16 divisors (see below), whose sum is σ = 97608060000. Its totient is φ = 74537003520.

The previous prime is 85705264553. The next prime is 85705264583. The reversal of 85705264579 is 97546250758.

It is a cyclic number.

It is not a de Polignac number, because 85705264579 - 2⁷ = 85705264451 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85705264529) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1197654 + ... + 1267195.

It is an arithmetic number, because the mean of its divisors is an integer number (6100503750).

Almost surely, 2^85705264579 is an apocalyptic number.

85705264579 is a deficient number, since it is larger than the sum of its proper divisors (11902795421).

85705264579 is a wasteful number, since it uses less digits than its factorization.

85705264579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2464998.

The product of its (nonzero) digits is 21168000, while the sum is 58.

The spelling of 85705264579 in words is "eighty-five billion, seven hundred five million, two hundred sixty-four thousand, five hundred seventy-nine".