2129754880 has 108 divisors (see below), whose sum is σ = 5607763056. Its totient is φ = 774400000.

The previous prime is 2129754877. The next prime is 2129754889. The reversal of 2129754880 is 884579212.

It is a self number, because there is not a number n which added to its sum of digits gives 2129754880.

It is not an unprimeable number, because it can be changed into a prime (2129754889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 148005 + ... + 161755.

It is an arithmetic number, because the mean of its divisors is an integer number (51923732).

Almost surely, 2^2129754880 is an apocalyptic number.

2129754880 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 2129754880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2803881528).

2129754880 is an abundant number, since it is smaller than the sum of its proper divisors (3478008176).

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

2129754880 is a wasteful number, since it uses less digits than its factorization.

2129754880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13794 (or 13769 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 46.

The square root of 2129754880 is about 46149.2673831340. The cubic root of 2129754880 is about 1286.5989935801.

The spelling of 2129754880 in words is "two billion, one hundred twenty-nine million, seven hundred fifty-four thousand, eight hundred eighty".