85554717818 has 8 divisors (see below), whose sum is σ = 128624406240. Its totient is φ = 42679915740.

The previous prime is 85554717709. The next prime is 85554717821. The reversal of 85554717818 is 81871745558.

It is a happy number.

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

It is a super-4 number, since 4×85554717818⁴ (a number of 45 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48720488 + ... + 48722243.

It is an arithmetic number, because the mean of its divisors is an integer number (16078050780).

Almost surely, 2^85554717818 is an apocalyptic number.

85554717818 is a deficient number, since it is larger than the sum of its proper divisors (43069688422).

85554717818 is a wasteful number, since it uses less digits than its factorization.

85554717818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97443172.

The product of its digits is 12544000, while the sum is 59.

The spelling of 85554717818 in words is "eighty-five billion, five hundred fifty-four million, seven hundred seventeen thousand, eight hundred eighteen".