85802744818 has 32 divisors (see below), whose sum is σ = 153915264000. Its totient is φ = 35098894080.

The previous prime is 85802744809. The next prime is 85802744837. The reversal of 85802744818 is 81844720858.

It is a happy number.

It is a super-2 number, since 2×85802744818² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1322443 + ... + 1385806.

It is an arithmetic number, because the mean of its divisors is an integer number (4809852000).

Almost surely, 2^85802744818 is an apocalyptic number.

85802744818 is a deficient number, since it is larger than the sum of its proper divisors (68112519182).

85802744818 is a wasteful number, since it uses less digits than its factorization.

85802744818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2708362.

The product of its (nonzero) digits is 4587520, while the sum is 55.

The spelling of 85802744818 in words is "eighty-five billion, eight hundred two million, seven hundred forty-four thousand, eight hundred eighteen".