40901849645 has 8 divisors (see below), whose sum is σ = 49102081656. Its totient is φ = 32708238336.

The previous prime is 40901849581. The next prime is 40901849657. The reversal of 40901849645 is 54694810904.

It can be written as a sum of positive squares in 4 ways, for example, as 2876069641 + 38025780004 = 53629^2 + 195002^2 .

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 40901849645 - 2⁶ = 40901849581 is a prime.

It is a super-3 number, since 3×40901849645³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 40901849593 and 40901849602.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1641572 + ... + 1666301.

It is an arithmetic number, because the mean of its divisors is an integer number (6137760207).

Almost surely, 2^40901849645 is an apocalyptic number.

It is an amenable number.

40901849645 is a deficient number, since it is larger than the sum of its proper divisors (8200232011).

40901849645 is a wasteful number, since it uses less digits than its factorization.

40901849645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3310351.

The product of its (nonzero) digits is 1244160, while the sum is 50.

The spelling of 40901849645 in words is "forty billion, nine hundred one million, eight hundred forty-nine thousand, six hundred forty-five".