1000085800100 has 36 divisors (see below), whose sum is σ = 2179663031700. Its totient is φ = 398287436160.

The previous prime is 1000085800099. The next prime is 1000085800151. The reversal of 1000085800100 is 10085800001.

It can be written as a sum of positive squares in 6 ways, for example, as 8695189504 + 991390610596 = 93248^2 + 995686^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21813035 + ... + 21858834.

It is an arithmetic number, because the mean of its divisors is an integer number (60546195325).

Almost surely, 2^{1000085800100} is an apocalyptic number.

1000085800100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000085800100 is an abundant number, since it is smaller than the sum of its proper divisors (1179577231600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1000085800100 is a wasteful number, since it uses less digits than its factorization.

1000085800100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43672112 (or 43672105 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 23.

Subtracting from 1000085800100 its reverse (10085800001), we obtain a palindrome (990000000099).

The spelling of 1000085800100 in words is "one trillion, eighty-five million, eight hundred thousand, one hundred".