85465656459 has 24 divisors (see below), whose sum is σ = 127908953952. Its totient is φ = 54946563840.

The previous prime is 85465656449. The next prime is 85465656499. The reversal of 85465656459 is 95465656458.

85465656459 is a `hidden beast` number, since 8 + 5 + 4 + 6 + 565 + 64 + 5 + 9 = 666.

It is not a de Polignac number, because 85465656459 - 2⁴ = 85465656443 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 85465656396 and 85465656405.

It is not an unprimeable number, because it can be changed into a prime (85465656449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1098007 + ... + 1173264.

It is an arithmetic number, because the mean of its divisors is an integer number (5329539748).

Almost surely, 2^85465656459 is an apocalyptic number.

85465656459 is a deficient number, since it is larger than the sum of its proper divisors (42443297493).

85465656459 is a wasteful number, since it uses less digits than its factorization.

85465656459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2271427 (or 2271424 counting only the distinct ones).

The product of its digits is 155520000, while the sum is 63.

Subtracting 85465656459 from its reverse (95465656458), we obtain a palindrome (9999999999).

The spelling of 85465656459 in words is "eighty-five billion, four hundred sixty-five million, six hundred fifty-six thousand, four hundred fifty-nine".