40144341423 has 4 divisors (see below), whose sum is σ = 53525788568. Its totient is φ = 26762894280.

The previous prime is 40144341407. The next prime is 40144341431. The reversal of 40144341423 is 32414344104.

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

It is not a de Polignac number, because 40144341423 - 2⁴ = 40144341407 is a prime.

It is a super-2 number, since 2×40144341423² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40144341493) 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, 6690723568 + ... + 6690723573.

It is an arithmetic number, because the mean of its divisors is an integer number (13381447142).

Almost surely, 2^40144341423 is an apocalyptic number.

40144341423 is a deficient number, since it is larger than the sum of its proper divisors (13381447145).

40144341423 is a wasteful number, since it uses less digits than its factorization.

40144341423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13381447144.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 40144341423 its reverse (32414344104), we get a palindrome (72558685527).

The spelling of 40144341423 in words is "forty billion, one hundred forty-four million, three hundred forty-one thousand, four hundred twenty-three".