9800105872 has 20 divisors (see below), whose sum is σ = 20104629516. Its totient is φ = 4611814400.

The previous prime is 9800105869. The next prime is 9800105897. The reversal of 9800105872 is 2785010089.

It can be written as a sum of positive squares in 2 ways, for example, as 7789121536 + 2010984336 = 88256^2 + 44844^2 .

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, 18014629 + ... + 18015172.

Almost surely, 2^9800105872 is an apocalyptic number.

It is an amenable number.

9800105872 is an abundant number, since it is smaller than the sum of its proper divisors (10304523644).

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

9800105872 is a wasteful number, since it uses less digits than its factorization.

9800105872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36029826 (or 36029820 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 40.

The square root of 9800105872 is about 98995.4840990234. The cubic root of 9800105872 is about 2139.9826673415.

The spelling of 9800105872 in words is "nine billion, eight hundred million, one hundred five thousand, eight hundred seventy-two".