85644153417 has 4 divisors (see below), whose sum is σ = 114192204560. Its totient is φ = 57096102276.

The previous prime is 85644153383. The next prime is 85644153421. The reversal of 85644153417 is 71435144658.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 85644153417 - 2¹⁵ = 85644120649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85644153467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14274025567 + ... + 14274025572.

It is an arithmetic number, because the mean of its divisors is an integer number (28548051140).

Almost surely, 2^85644153417 is an apocalyptic number.

It is an amenable number.

85644153417 is a deficient number, since it is larger than the sum of its proper divisors (28548051143).

85644153417 is a wasteful number, since it uses less digits than its factorization.

85644153417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28548051142.

The product of its digits is 1612800, while the sum is 48.

The spelling of 85644153417 in words is "eighty-five billion, six hundred forty-four million, one hundred fifty-three thousand, four hundred seventeen".