42742433723 has 16 divisors (see below), whose sum is σ = 47239670016. Its totient is φ = 38348113440.

The previous prime is 42742433683. The next prime is 42742433729. The reversal of 42742433723 is 32733424724.

It is a cyclic number.

It is not a de Polignac number, because 42742433723 - 2⁶ = 42742433659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42742433729) 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 15 ways as a sum of consecutive naturals, for example, 858665 + ... + 907077.

It is an arithmetic number, because the mean of its divisors is an integer number (2952479376).

Almost surely, 2^42742433723 is an apocalyptic number.

42742433723 is a deficient number, since it is larger than the sum of its proper divisors (4497236293).

42742433723 is a wasteful number, since it uses less digits than its factorization.

42742433723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49474.

The product of its digits is 677376, while the sum is 41.

The spelling of 42742433723 in words is "forty-two billion, seven hundred forty-two million, four hundred thirty-three thousand, seven hundred twenty-three".