40052945217 has 32 divisors (see below), whose sum is σ = 57653164800. Its totient is φ = 24643657728.

The previous prime is 40052945209. The next prime is 40052945293. The reversal of 40052945217 is 71254925004.

It is not a de Polignac number, because 40052945217 - 2³ = 40052945209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40052945017) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 502084 + ... + 576362.

It is an arithmetic number, because the mean of its divisors is an integer number (1801661400).

Almost surely, 2^40052945217 is an apocalyptic number.

It is an amenable number.

40052945217 is a deficient number, since it is larger than the sum of its proper divisors (17600219583).

40052945217 is a wasteful number, since it uses less digits than its factorization.

40052945217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74505.

The product of its (nonzero) digits is 100800, while the sum is 39.

The spelling of 40052945217 in words is "forty billion, fifty-two million, nine hundred forty-five thousand, two hundred seventeen".