1223439872884 has 12 divisors (see below), whose sum is σ = 2150369210500. Its totient is φ = 609048669888.

The previous prime is 1223439872861. The next prime is 1223439872887. The reversal of 1223439872884 is 4882789343221.

It can be written as a sum of positive squares in 2 ways, for example, as 793132736400 + 430307136484 = 890580^2 + 655978^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223439872887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 667815609 + ... + 667817440.

Almost surely, 2^{1223439872884} is an apocalyptic number.

It is an amenable number.

1223439872884 is a deficient number, since it is larger than the sum of its proper divisors (926929337616).

1223439872884 is a wasteful number, since it uses less digits than its factorization.

1223439872884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1335633282 (or 1335633280 counting only the distinct ones).

The product of its digits is 37158912, while the sum is 61.

The spelling of 1223439872884 in words is "one trillion, two hundred twenty-three billion, four hundred thirty-nine million, eight hundred seventy-two thousand, eight hundred eighty-four".