40531144493 has 8 divisors (see below), whose sum is σ = 46370229312. Its totient is φ = 34704290016.

The previous prime is 40531144483. The next prime is 40531144523. The reversal of 40531144493 is 39444113504.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40531144493 - 2⁶ = 40531144429 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 (40531144483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3050480 + ... + 3063737.

It is an arithmetic number, because the mean of its divisors is an integer number (5796278664).

Almost surely, 2^40531144493 is an apocalyptic number.

It is an amenable number.

40531144493 is a deficient number, since it is larger than the sum of its proper divisors (5839084819).

40531144493 is an equidigital number, since it uses as much as digits as its factorization.

40531144493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6115171.

The product of its (nonzero) digits is 103680, while the sum is 38.

Adding to 40531144493 its reverse (39444113504), we get a palindrome (79975257997).

The spelling of 40531144493 in words is "forty billion, five hundred thirty-one million, one hundred forty-four thousand, four hundred ninety-three".