40731244517 has 8 divisors (see below), whose sum is σ = 42169870200. Its totient is φ = 39294892224.

The previous prime is 40731244457. The next prime is 40731244553. The reversal of 40731244517 is 71544213704.

It can be written as a sum of positive squares in 4 ways, for example, as 15803255521 + 24927988996 = 125711^2 + 157886^2 .

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 40731244517 - 2⁶ = 40731244453 is a prime.

It is a super-3 number, since 3×40731244517³ (a number of 33 digits) contains 333 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 (40731244217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 531842 + ... + 603587.

It is an arithmetic number, because the mean of its divisors is an integer number (5271233775).

Almost surely, 2^40731244517 is an apocalyptic number.

It is an amenable number.

40731244517 is a deficient number, since it is larger than the sum of its proper divisors (1438625683).

40731244517 is a wasteful number, since it uses less digits than its factorization.

40731244517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1136695.

The product of its (nonzero) digits is 94080, while the sum is 38.

The spelling of 40731244517 in words is "forty billion, seven hundred thirty-one million, two hundred forty-four thousand, five hundred seventeen".