85458811647 has 8 divisors (see below), whose sum is σ = 124303726080. Its totient is φ = 51793219160.

The previous prime is 85458811583. The next prime is 85458811679. The reversal of 85458811647 is 74611885458.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85458811647 - 2⁶ = 85458811583 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85458811447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1294830447 + ... + 1294830512.

It is an arithmetic number, because the mean of its divisors is an integer number (15537965760).

Almost surely, 2^85458811647 is an apocalyptic number.

85458811647 is a deficient number, since it is larger than the sum of its proper divisors (38844914433).

85458811647 is a wasteful number, since it uses less digits than its factorization.

85458811647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2589660973.

The product of its digits is 8601600, while the sum is 57.

The spelling of 85458811647 in words is "eighty-five billion, four hundred fifty-eight million, eight hundred eleven thousand, six hundred forty-seven".