126223523756 has 48 divisors (see below), whose sum is σ = 247545154080. Its totient is φ = 55810091520.

The previous prime is 126223523753. The next prime is 126223523761. The reversal of 126223523756 is 657325322621.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (126223523753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9847880 + ... + 9860688.

It is an arithmetic number, because the mean of its divisors is an integer number (5157190710).

Almost surely, 2^126223523756 is an apocalyptic number.

It is an amenable number.

126223523756 is a deficient number, since it is larger than the sum of its proper divisors (121321630324).

126223523756 is a wasteful number, since it uses less digits than its factorization.

126223523756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18914 (or 18912 counting only the distinct ones).

The product of its digits is 907200, while the sum is 44.

The spelling of 126223523756 in words is "one hundred twenty-six billion, two hundred twenty-three million, five hundred twenty-three thousand, seven hundred fifty-six".