40555217919 has 8 divisors (see below), whose sum is σ = 55224126720. Its totient is φ = 26461560536.

The previous prime is 40555217917. The next prime is 40555217921. The reversal of 40555217919 is 91971255504.

It is an interprime number because it is at equal distance from previous prime (40555217917) and next prime (40555217921).

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 40555217919 - 2¹ = 40555217917 is a prime.

It is a super-2 number, since 2×40555217919² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40555217917) 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, 143812689 + ... + 143812970.

It is an arithmetic number, because the mean of its divisors is an integer number (6903015840).

Almost surely, 2^40555217919 is an apocalyptic number.

40555217919 is a deficient number, since it is larger than the sum of its proper divisors (14668908801).

40555217919 is a wasteful number, since it uses less digits than its factorization.

40555217919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287625709.

The product of its (nonzero) digits is 567000, while the sum is 48.

The spelling of 40555217919 in words is "forty billion, five hundred fifty-five million, two hundred seventeen thousand, nine hundred nineteen".