42044378023 has 4 divisors (see below), whose sum is σ = 42149227248. Its totient is φ = 41939528800.

The previous prime is 42044377987. The next prime is 42044378041. The reversal of 42044378023 is 32087344024.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42044378023 - 2¹³ = 42044369831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42044378063) 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, 52424011 + ... + 52424812.

It is an arithmetic number, because the mean of its divisors is an integer number (10537306812).

Almost surely, 2^42044378023 is an apocalyptic number.

42044378023 is a deficient number, since it is larger than the sum of its proper divisors (104849225).

42044378023 is a wasteful number, since it uses less digits than its factorization.

42044378023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104849224.

The product of its (nonzero) digits is 129024, while the sum is 37.

The spelling of 42044378023 in words is "forty-two billion, forty-four million, three hundred seventy-eight thousand, twenty-three".