2281181377792 has 36 divisors (see below), whose sum is σ = 4578609176596. Its totient is φ = 1134289059840.

The previous prime is 2281181377777. The next prime is 2281181377793. The reversal of 2281181377792 is 2977731811822.

It can be written as a sum of positive squares in 2 ways, for example, as 354148770816 + 1927032606976 = 595104^2 + 1388176^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2281181377793) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24569313 + ... + 24661984.

Almost surely, 2^{2281181377792} is an apocalyptic number.

It is an amenable number.

2281181377792 is an abundant number, since it is smaller than the sum of its proper divisors (2297427798804).

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

2281181377792 is an equidigital number, since it uses as much as digits as its factorization.

2281181377792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49231494 (or 49231480 counting only the distinct ones).

The product of its digits is 4741632, while the sum is 58.

The spelling of 2281181377792 in words is "two trillion, two hundred eighty-one billion, one hundred eighty-one million, three hundred seventy-seven thousand, seven hundred ninety-two".