85465656457 has 4 divisors (see below), whose sum is σ = 85648666896. Its totient is φ = 85282646020.

The previous prime is 85465656449. The next prime is 85465656499. The reversal of 85465656457 is 75465656458.

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 85465656457 - 2³ = 85465656449 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85465656395 and 85465656404.

It is not an unprimeable number, because it can be changed into a prime (85465626457) 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, 91504519 + ... + 91505452.

It is an arithmetic number, because the mean of its divisors is an integer number (21412166724).

Almost surely, 2^85465656457 is an apocalyptic number.

It is an amenable number.

85465656457 is a deficient number, since it is larger than the sum of its proper divisors (183010439).

85465656457 is a wasteful number, since it uses less digits than its factorization.

85465656457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183010438.

The product of its digits is 120960000, while the sum is 61.

Subtracting from 85465656457 its reverse (75465656458), we obtain a palindrome (9999999999).

The spelling of 85465656457 in words is "eighty-five billion, four hundred sixty-five million, six hundred fifty-six thousand, four hundred fifty-seven".