1223906671444 has 6 divisors (see below), whose sum is σ = 2141836675034. Its totient is φ = 611953335720.

The previous prime is 1223906671433. The next prime is 1223906671453. The reversal of 1223906671444 is 4441766093221.

It can be written as a sum of positive squares in only one way, i.e., 949552802500 + 274353868944 = 974450^2 + 523788^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152988333927 + ... + 152988333934.

Almost surely, 2^{1223906671444} is an apocalyptic number.

It is an amenable number.

1223906671444 is a deficient number, since it is larger than the sum of its proper divisors (917930003590).

1223906671444 is a wasteful number, since it uses less digits than its factorization.

1223906671444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305976667865 (or 305976667863 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 49.

The spelling of 1223906671444 in words is "one trillion, two hundred twenty-three billion, nine hundred six million, six hundred seventy-one thousand, four hundred forty-four".