40042004525023 has 4 divisors (see below), whose sum is σ = 40720682567880. Its totient is φ = 39363326482168.

The previous prime is 40042004524939. The next prime is 40042004525057. The reversal of 40042004525023 is 32052540024004.

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 40042004525023 - 2⁴⁵ = 4857632436191 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 (40042004595023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 339339021340 + ... + 339339021457.

It is an arithmetic number, because the mean of its divisors is an integer number (10180170641970).

Almost surely, 2^{40042004525023} is an apocalyptic number.

40042004525023 is a deficient number, since it is larger than the sum of its proper divisors (678678042857).

40042004525023 is an equidigital number, since it uses as much as digits as its factorization.

40042004525023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678678042856.

The product of its (nonzero) digits is 38400, while the sum is 31.

Adding to 40042004525023 its reverse (32052540024004), we get a palindrome (72094544549027).

The spelling of 40042004525023 in words is "forty trillion, forty-two billion, four million, five hundred twenty-five thousand, twenty-three".