9125890720 has 48 divisors (see below), whose sum is σ = 21576737448. Its totient is φ = 3647508480.

The previous prime is 9125890691. The next prime is 9125890727. The reversal of 9125890720 is 270985219.

It can be written as a sum of positive squares in 4 ways, for example, as 8909094544 + 216796176 = 94388^2 + 14724^2 .

It is not an unprimeable number, because it can be changed into a prime (9125890727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189772 + ... + 232948.

Almost surely, 2^9125890720 is an apocalyptic number.

It is an amenable number.

9125890720 is an abundant number, since it is smaller than the sum of its proper divisors (12450846728).

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

9125890720 is a wasteful number, since it uses less digits than its factorization.

9125890720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44513 (or 44505 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 9125890720 is about 95529.5280005088. The cubic root of 9125890720 is about 2089.7375890562.

The spelling of 9125890720 in words is "nine billion, one hundred twenty-five million, eight hundred ninety thousand, seven hundred twenty".