40516278399 has 12 divisors (see below), whose sum is σ = 59627731176. Its totient is φ = 26501213232.

The previous prime is 40516278379. The next prime is 40516278401. The reversal of 40516278399 is 99387261504.

40516278399 is a `hidden beast` number, since 4 + 0 + 5 + 1 + 627 + 8 + 3 + 9 + 9 = 666.

It is not a de Polignac number, because 40516278399 - 2⁵ = 40516278367 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40516278379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42469417 + ... + 42470370.

It is an arithmetic number, because the mean of its divisors is an integer number (4968977598).

It is a 1-persistent number, because it is pandigital, but 2⋅40516278399 = 81032556798 is not.

Almost surely, 2^40516278399 is an apocalyptic number.

40516278399 is a deficient number, since it is larger than the sum of its proper divisors (19111452777).

40516278399 is a wasteful number, since it uses less digits than its factorization.

40516278399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84939846 (or 84939843 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The spelling of 40516278399 in words is "forty billion, five hundred sixteen million, two hundred seventy-eight thousand, three hundred ninety-nine".