85854671493 has 4 divisors (see below), whose sum is σ = 114472895328. Its totient is φ = 57236447660.

The previous prime is 85854671479. The next prime is 85854671503. The reversal of 85854671493 is 39417645858.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 85854671493 - 2¹⁸ = 85854409349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85854671093) 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, 14309111913 + ... + 14309111918.

It is an arithmetic number, because the mean of its divisors is an integer number (28618223832).

Almost surely, 2^85854671493 is an apocalyptic number.

It is an amenable number.

85854671493 is a deficient number, since it is larger than the sum of its proper divisors (28618223835).

85854671493 is a wasteful number, since it uses less digits than its factorization.

85854671493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28618223834.

The product of its digits is 29030400, while the sum is 60.

It can be divided in two parts, 858546 and 71493, that added together give a palindrome (930039).

The spelling of 85854671493 in words is "eighty-five billion, eight hundred fifty-four million, six hundred seventy-one thousand, four hundred ninety-three".