2228780729904 has 80 divisors (see below), whose sum is σ = 5771014604640. Its totient is φ = 741208596480.

The previous prime is 2228780729891. The next prime is 2228780729921. The reversal of 2228780729904 is 4099270878222.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors.

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 15 ways as a sum of consecutive naturals, for example, 40489152 + ... + 40544160.

It is an arithmetic number, because the mean of its divisors is an integer number (72137682558).

Almost surely, 2^{2228780729904} is an apocalyptic number.

2228780729904 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2228780729904 is an abundant number, since it is smaller than the sum of its proper divisors (3542233874736).

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

2228780729904 is a wasteful number, since it uses less digits than its factorization.

2228780729904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56958 (or 56952 counting only the distinct ones).

The product of its (nonzero) digits is 16257024, while the sum is 60.

The spelling of 2228780729904 in words is "two trillion, two hundred twenty-eight billion, seven hundred eighty million, seven hundred twenty-nine thousand, nine hundred four".