2281351478880 has 96 divisors (see below), whose sum is σ = 7186465692000. Its totient is φ = 608342740992.

The previous prime is 2281351478851. The next prime is 2281351478881. The reversal of 2281351478880 is 888741531822.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 2281351478880.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2281351478881) by changing a digit.

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, 32301846 + ... + 32372394.

It is an arithmetic number, because the mean of its divisors is an integer number (74859017625).

Almost surely, 2^{2281351478880} is an apocalyptic number.

2281351478880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2281351478880 is an abundant number, since it is smaller than the sum of its proper divisors (4905114213120).

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

2281351478880 is a wasteful number, since it uses less digits than its factorization.

2281351478880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137936 (or 137928 counting only the distinct ones).

The product of its (nonzero) digits is 6881280, while the sum is 57.

The spelling of 2281351478880 in words is "two trillion, two hundred eighty-one billion, three hundred fifty-one million, four hundred seventy-eight thousand, eight hundred eighty".