126243575444 has 24 divisors (see below), whose sum is σ = 252619657920. Its totient is φ = 54075995136.

The previous prime is 126243575401. The next prime is 126243575467. The reversal of 126243575444 is 444575342621.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1128749 + ... + 1235540.

It is an arithmetic number, because the mean of its divisors is an integer number (10525819080).

Almost surely, 2^126243575444 is an apocalyptic number.

126243575444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

126243575444 is an abundant number, since it is smaller than the sum of its proper divisors (126376082476).

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

126243575444 is a wasteful number, since it uses less digits than its factorization.

126243575444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2366207 (or 2366205 counting only the distinct ones).

The product of its digits is 3225600, while the sum is 47.

The spelling of 126243575444 in words is "one hundred twenty-six billion, two hundred forty-three million, five hundred seventy-five thousand, four hundred forty-four".