40018889999 has 8 divisors (see below), whose sum is σ = 43775931648. Its totient is φ = 36281675160.

The previous prime is 40018889993. The next prime is 40018890017. The reversal of 40018889999 is 99998881004.

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 40018889999 - 2²⁸ = 39750454543 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 (40018889993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4952477 + ... + 4960550.

It is an arithmetic number, because the mean of its divisors is an integer number (5471991456).

Almost surely, 2^40018889999 is an apocalyptic number.

40018889999 is a deficient number, since it is larger than the sum of its proper divisors (3757041649).

40018889999 is a wasteful number, since it uses less digits than its factorization.

40018889999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9913405.

The product of its (nonzero) digits is 13436928, while the sum is 65.

The spelling of 40018889999 in words is "forty billion, eighteen million, eight hundred eighty-nine thousand, nine hundred ninety-nine".