2187438445360 has 120 divisors (see below), whose sum is σ = 5950653374880. Its totient is φ = 732537179136.

The previous prime is 2187438445337. The next prime is 2187438445391. The reversal of 2187438445360 is 635448347812.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20845 + ... + 2091724.

It is an arithmetic number, because the mean of its divisors is an integer number (49588778124).

Almost surely, 2^{2187438445360} is an apocalyptic number.

2187438445360 is a gapful number since it is divisible by the number (20) 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 2187438445360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2975326687440).

2187438445360 is an abundant number, since it is smaller than the sum of its proper divisors (3763214929520).

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

2187438445360 is a wasteful number, since it uses less digits than its factorization.

2187438445360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2112675 (or 2112626 counting only the distinct ones).

The product of its (nonzero) digits is 15482880, while the sum is 55.

The spelling of 2187438445360 in words is "two trillion, one hundred eighty-seven billion, four hundred thirty-eight million, four hundred forty-five thousand, three hundred sixty".