85468584247 has 4 divisors (see below), whose sum is σ = 85505569936. Its totient is φ = 85431598560.

The previous prime is 85468584217. The next prime is 85468584281. The reversal of 85468584247 is 74248586458.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74248586458 = 2 ⋅37124293229.

It is a cyclic number.

It is not a de Polignac number, because 85468584247 - 2²⁷ = 85334366519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85468584217) 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, 18489378 + ... + 18493999.

It is an arithmetic number, because the mean of its divisors is an integer number (21376392484).

Almost surely, 2^85468584247 is an apocalyptic number.

85468584247 is a deficient number, since it is larger than the sum of its proper divisors (36985689).

85468584247 is a wasteful number, since it uses less digits than its factorization.

85468584247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36985688.

The product of its digits is 68812800, while the sum is 61.

The spelling of 85468584247 in words is "eighty-five billion, four hundred sixty-eight million, five hundred eighty-four thousand, two hundred forty-seven".