40517220040021 has 8 divisors (see below), whose sum is σ = 41162230892384. Its totient is φ = 39873393782640.

The previous prime is 40517220039899. The next prime is 40517220040039. The reversal of 40517220040021 is 12004002271504.

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 40517220040021 - 2¹³ = 40517220031829 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 (40517220040321) 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, 296079795 + ... + 296216608.

It is an arithmetic number, because the mean of its divisors is an integer number (5145278861548).

Almost surely, 2^{40517220040021} is an apocalyptic number.

It is an amenable number.

40517220040021 is a deficient number, since it is larger than the sum of its proper divisors (645010852363).

40517220040021 is a wasteful number, since it uses less digits than its factorization.

40517220040021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592297491.

The product of its (nonzero) digits is 4480, while the sum is 28.

The spelling of 40517220040021 in words is "forty trillion, five hundred seventeen billion, two hundred twenty million, forty thousand, twenty-one".