40843231519 has 4 divisors (see below), whose sum is σ = 40845455280. Its totient is φ = 40841007760.

The previous prime is 40843231469. The next prime is 40843231523. The reversal of 40843231519 is 91513234804.

It is a happy number.

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 40843231519 - 2⁹ = 40843231007 is a prime.

It is a super-2 number, since 2×40843231519² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40843231529) 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, 1084099 + ... + 1121140.

It is an arithmetic number, because the mean of its divisors is an integer number (10211363820).

Almost surely, 2^40843231519 is an apocalyptic number.

40843231519 is a deficient number, since it is larger than the sum of its proper divisors (2223761).

40843231519 is a wasteful number, since it uses less digits than its factorization.

40843231519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2223760.

The product of its (nonzero) digits is 103680, while the sum is 40.

The spelling of 40843231519 in words is "forty billion, eight hundred forty-three million, two hundred thirty-one thousand, five hundred nineteen".