40400040443999 has 4 divisors (see below), whose sum is σ = 40506636857160. Its totient is φ = 40293444030840.

The previous prime is 40400040443989. The next prime is 40400040444037. The reversal of 40400040443999 is 99934404000404.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40400040443999 - 2³⁶ = 40331320967263 is a prime.

It is a super-2 number, since 2×40400040443999² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40400040443909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53298206012 + ... + 53298206769.

It is an arithmetic number, because the mean of its divisors is an integer number (10126659214290).

Almost surely, 2^{40400040443999} is an apocalyptic number.

40400040443999 is a deficient number, since it is larger than the sum of its proper divisors (106596413161).

40400040443999 is a wasteful number, since it uses less digits than its factorization.

40400040443999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106596413160.

The product of its (nonzero) digits is 2239488, while the sum is 50.

The spelling of 40400040443999 in words is "forty trillion, four hundred billion, forty million, four hundred forty-three thousand, nine hundred ninety-nine".