2189109702240 has 96 divisors (see below), whose sum is σ = 7661883972960. Its totient is φ = 583762586112.

The previous prime is 2189109702229. The next prime is 2189109702259. The reversal of 2189109702240 is 422079019812.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×2189109702240² (a number of 25 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 253364859 + ... + 253373498.

It is an arithmetic number, because the mean of its divisors is an integer number (79811291385).

Almost surely, 2^{2189109702240} is an apocalyptic number.

2189109702240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2189109702240 is an abundant number, since it is smaller than the sum of its proper divisors (5472774270720).

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

2189109702240 is a wasteful number, since it uses less digits than its factorization.

2189109702240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506738381 (or 506738367 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The spelling of 2189109702240 in words is "two trillion, one hundred eighty-nine billion, one hundred nine million, seven hundred two thousand, two hundred forty".