40134806423128 has 16 divisors (see below), whose sum is σ = 76159421828280. Its totient is φ = 19825627268928.

The previous prime is 40134806423123. The next prime is 40134806423137. The reversal of 40134806423128 is 82132460843104.

It is a super-2 number, since 2×40134806423128² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40134806423123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30221992125 + ... + 30221993452.

Almost surely, 2^{40134806423128} is an apocalyptic number.

It is an amenable number.

40134806423128 is a deficient number, since it is larger than the sum of its proper divisors (36024615405152).

40134806423128 is a wasteful number, since it uses less digits than its factorization.

40134806423128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60443985666 (or 60443985662 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 46.

The spelling of 40134806423128 in words is "forty trillion, one hundred thirty-four billion, eight hundred six million, four hundred twenty-three thousand, one hundred twenty-eight".