2109004877440 has 64 divisors (see below), whose sum is σ = 5078112228000. Its totient is φ = 837532836864.

The previous prime is 2109004877437. The next prime is 2109004877453. The reversal of 2109004877440 is 447784009012.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

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, 11764710 + ... + 11942629.

Almost surely, 2^{2109004877440} is an apocalyptic number.

2109004877440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2109004877440 is an abundant number, since it is smaller than the sum of its proper divisors (2969107350560).

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

2109004877440 is a wasteful number, since it uses less digits than its factorization.

2109004877440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23707497 (or 23707485 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 46.

The spelling of 2109004877440 in words is "two trillion, one hundred nine billion, four million, eight hundred seventy-seven thousand, four hundred forty".