40438138175041 has 4 divisors (see below), whose sum is σ = 40809130268500. Its totient is φ = 40067146081584.

The previous prime is 40438138175027. The next prime is 40438138175051. The reversal of 40438138175041 is 14057183183404.

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

It can be written as a sum of positive squares in 2 ways, for example, as 22219241085441 + 18218897089600 = 4713729^2 + 4268360^2 .

It is a cyclic number.

It is not a de Polignac number, because 40438138175041 - 2²⁷ = 40438003957313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40438138175051) 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, 185496046566 + ... + 185496046783.

It is an arithmetic number, because the mean of its divisors is an integer number (10202282567125).

Almost surely, 2^{40438138175041} is an apocalyptic number.

It is an amenable number.

40438138175041 is a deficient number, since it is larger than the sum of its proper divisors (370992093459).

40438138175041 is a wasteful number, since it uses less digits than its factorization.

40438138175041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370992093458.

The product of its (nonzero) digits is 1290240, while the sum is 49.

The spelling of 40438138175041 in words is "forty trillion, four hundred thirty-eight billion, one hundred thirty-eight million, one hundred seventy-five thousand, forty-one".