40438000137707 has 4 divisors (see below), whose sum is σ = 40438327083336. Its totient is φ = 40437673192080.

The previous prime is 40438000137683. The next prime is 40438000137709. The reversal of 40438000137707 is 70773100083404.

It is a happy number.

40438000137707 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 40438000137707 - 2²² = 40437995943403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40438000137709) 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 3 ways as a sum of consecutive naturals, for example, 163287218 + ... + 163534679.

It is an arithmetic number, because the mean of its divisors is an integer number (10109581770834).

Almost surely, 2^{40438000137707} is an apocalyptic number.

40438000137707 is a deficient number, since it is larger than the sum of its proper divisors (326945629).

40438000137707 is a wasteful number, since it uses less digits than its factorization.

40438000137707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326945628.

The product of its (nonzero) digits is 395136, while the sum is 44.

The spelling of 40438000137707 in words is "forty trillion, four hundred thirty-eight billion, one hundred thirty-seven thousand, seven hundred seven".