2144687332480 has 128 divisors (see below), whose sum is σ = 6392282520960. Its totient is φ = 668473958400.

The previous prime is 2144687332451. The next prime is 2144687332481. The reversal of 2144687332480 is 842337864412.

It is a tau number, because it is divible by the number of its divisors (128).

It is not an unprimeable number, because it can be changed into a prime (2144687332481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21710941 + ... + 21809500.

It is an arithmetic number, because the mean of its divisors is an integer number (49939707195).

Almost surely, 2^{2144687332480} is an apocalyptic number.

2144687332480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2144687332480 is an abundant number, since it is smaller than the sum of its proper divisors (4247595188480).

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

2144687332480 is a wasteful number, since it uses less digits than its factorization.

2144687332480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43520478 (or 43520466 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 52.

The spelling of 2144687332480 in words is "two trillion, one hundred forty-four billion, six hundred eighty-seven million, three hundred thirty-two thousand, four hundred eighty".