9127206990 has 192 divisors, whose sum is σ = 26991843840. Its totient is φ = 2120152320.

The previous prime is 9127206989. The next prime is 9127206997. The reversal of 9127206990 is 996027219.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9127206997) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2452351 + ... + 2456069.

It is an arithmetic number, because the mean of its divisors is an integer number (140582520).

Almost surely, 2^9127206990 is an apocalyptic number.

9127206990 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 9127206990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13495921920).

9127206990 is an abundant number, since it is smaller than the sum of its proper divisors (17864636850).

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

9127206990 is a wasteful number, since it uses less digits than its factorization.

9127206990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3847 (or 3844 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 45.

The square root of 9127206990 is about 95536.4170879356. The cubic root of 9127206990 is about 2089.8380551091.

The spelling of 9127206990 in words is "nine billion, one hundred twenty-seven million, two hundred six thousand, nine hundred ninety".