2190728563788 has 24 divisors (see below), whose sum is σ = 5276593530880. Its totient is φ = 706686633360.

The previous prime is 2190728563781. The next prime is 2190728563867. The reversal of 2190728563788 is 8873658270912.

It is not an unprimeable number, because it can be changed into a prime (2190728563781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2944527268 + ... + 2944528011.

Almost surely, 2^{2190728563788} is an apocalyptic number.

It is an amenable number.

2190728563788 is an abundant number, since it is smaller than the sum of its proper divisors (3085864967092).

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

2190728563788 is a wasteful number, since it uses less digits than its factorization.

2190728563788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5889055317 (or 5889055315 counting only the distinct ones).

The product of its (nonzero) digits is 81285120, while the sum is 66.

The spelling of 2190728563788 in words is "two trillion, one hundred ninety billion, seven hundred twenty-eight million, five hundred sixty-three thousand, seven hundred eighty-eight".