9898125270 has 64 divisors (see below), whose sum is σ = 26466518016. Its totient is φ = 2348487680.

The previous prime is 9898125269. The next prime is 9898125287. The reversal of 9898125270 is 725218989.

It is a super-2 number, since 2×9898125270² (a number of 21 digits) contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 303579 + ... + 334598.

It is an arithmetic number, because the mean of its divisors is an integer number (413539344).

Almost surely, 2^9898125270 is an apocalyptic number.

9898125270 is an abundant number, since it is smaller than the sum of its proper divisors (16568392746).

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

9898125270 is a wasteful number, since it uses less digits than its factorization.

9898125270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638245.

The product of its (nonzero) digits is 725760, while the sum is 51.

The square root of 9898125270 is about 99489.3223919029. The cubic root of 9898125270 is about 2147.0936225858.

It can be divided in two parts, 98981 and 25270, that added together give a triangular number (124251 = T₄₉₈).

The spelling of 9898125270 in words is "nine billion, eight hundred ninety-eight million, one hundred twenty-five thousand, two hundred seventy".