9889214725 has 24 divisors (see below), whose sum is σ = 13229856360. Its totient is φ = 7289560320.

The previous prime is 9889214693. The next prime is 9889214729. The reversal of 9889214725 is 5274129889.

It can be written as a sum of positive squares in 12 ways, for example, as 5910380641 + 3978834084 = 76879^2 + 63078^2 .

It is not a de Polignac number, because 9889214725 - 2⁵ = 9889214693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9889214729) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 153711 + ... + 208339.

It is an arithmetic number, because the mean of its divisors is an integer number (551244015).

Almost surely, 2^9889214725 is an apocalyptic number.

It is an amenable number.

9889214725 is a deficient number, since it is larger than the sum of its proper divisors (3340641635).

9889214725 is a wasteful number, since it uses less digits than its factorization.

9889214725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55209 (or 55204 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 55.

The square root of 9889214725 is about 99444.5308953690. The cubic root of 9889214725 is about 2146.4491396605.

The spelling of 9889214725 in words is "nine billion, eight hundred eighty-nine million, two hundred fourteen thousand, seven hundred twenty-five".