2281681261524 has 24 divisors (see below), whose sum is σ = 6084483364288. Its totient is φ = 651908931840.

The previous prime is 2281681261501. The next prime is 2281681261537. The reversal of 2281681261524 is 4251621861822.

2281681261524 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13581435997 + ... + 13581436164.

Almost surely, 2^{2281681261524} is an apocalyptic number.

It is an amenable number.

2281681261524 is an abundant number, since it is smaller than the sum of its proper divisors (3802802102764).

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

2281681261524 is a wasteful number, since it uses less digits than its factorization.

2281681261524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27162872175 (or 27162872173 counting only the distinct ones).

The product of its digits is 737280, while the sum is 48.

The spelling of 2281681261524 in words is "two trillion, two hundred eighty-one billion, six hundred eighty-one million, two hundred sixty-one thousand, five hundred twenty-four".