85818845641 has 8 divisors (see below), whose sum is σ = 86703920064. Its totient is φ = 84934465200.

The previous prime is 85818845639. The next prime is 85818845743. The reversal of 85818845641 is 14654881858.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85818845641 - 2¹ = 85818845639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85818845141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76956 + ... + 421378.

It is an arithmetic number, because the mean of its divisors is an integer number (10837990008).

Almost surely, 2^85818845641 is an apocalyptic number.

It is an amenable number.

85818845641 is a deficient number, since it is larger than the sum of its proper divisors (885074423).

85818845641 is a wasteful number, since it uses less digits than its factorization.

85818845641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346991.

The product of its digits is 9830400, while the sum is 58.

The spelling of 85818845641 in words is "eighty-five billion, eight hundred eighteen million, eight hundred forty-five thousand, six hundred forty-one".