2207620009728 has 288 divisors, whose sum is σ = 7572306398720. Its totient is φ = 621333504000.

The previous prime is 2207620009687. The next prime is 2207620009729. The reversal of 2207620009728 is 8279000267022.

It is a tau number, because it is divible by the number of its divisors (288).

It is a super-2 number, since 2×2207620009728² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2207620009729) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2901228 + ... + 3582228.

Almost surely, 2^{2207620009728} is an apocalyptic number.

2207620009728 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2207620009728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3786153199360).

2207620009728 is an abundant number, since it is smaller than the sum of its proper divisors (5364686388992).

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

2207620009728 is an equidigital number, since it uses as much as digits as its factorization.

2207620009728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681100 (or 681080 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The spelling of 2207620009728 in words is "two trillion, two hundred seven billion, six hundred twenty million, nine thousand, seven hundred twenty-eight".