85623468481 has 4 divisors (see below), whose sum is σ = 85706518464. Its totient is φ = 85540418500.

The previous prime is 85623468457. The next prime is 85623468493. The reversal of 85623468481 is 18486432658.

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 85623468481 - 2¹¹ = 85623466433 is a prime.

It is a super-2 number, since 2×85623468481² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85623468451) 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, 41523445 + ... + 41525506.

It is an arithmetic number, because the mean of its divisors is an integer number (21426629616).

Almost surely, 2^85623468481 is an apocalyptic number.

It is an amenable number.

85623468481 is a deficient number, since it is larger than the sum of its proper divisors (83049983).

85623468481 is a wasteful number, since it uses less digits than its factorization.

85623468481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83049982.

The product of its digits is 8847360, while the sum is 55.

The spelling of 85623468481 in words is "eighty-five billion, six hundred twenty-three million, four hundred sixty-eight thousand, four hundred eighty-one".