40400040039999 has 16 divisors (see below), whose sum is σ = 53905235594112. Its totient is φ = 26914103254368.

The previous prime is 40400040039967. The next prime is 40400040040007. The reversal of 40400040039999 is 99993004000404.

It is not a de Polignac number, because 40400040039999 - 2⁵ = 40400040039967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40400040039929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 199658772 + ... + 199861014.

It is an arithmetic number, because the mean of its divisors is an integer number (3369077224632).

Almost surely, 2^{40400040039999} is an apocalyptic number.

40400040039999 is a deficient number, since it is larger than the sum of its proper divisors (13505195554113).

40400040039999 is a wasteful number, since it uses less digits than its factorization.

40400040039999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249526.

The product of its (nonzero) digits is 1259712, while the sum is 51.

The spelling of 40400040039999 in words is "forty trillion, four hundred billion, forty million, thirty-nine thousand, nine hundred ninety-nine".