126723603542 has 8 divisors (see below), whose sum is σ = 190526440032. Its totient is φ = 63214790200.

The previous prime is 126723603541. The next prime is 126723603551. The reversal of 126723603542 is 245306327621.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 126723603542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126723603541) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 73504709 + ... + 73506432.

It is an arithmetic number, because the mean of its divisors is an integer number (23815805004).

Almost surely, 2^126723603542 is an apocalyptic number.

126723603542 is a deficient number, since it is larger than the sum of its proper divisors (63802836490).

126723603542 is a wasteful number, since it uses less digits than its factorization.

126723603542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147011574.

The product of its (nonzero) digits is 362880, while the sum is 41.

The spelling of 126723603542 in words is "one hundred twenty-six billion, seven hundred twenty-three million, six hundred three thousand, five hundred forty-two".