40034123158 has 12 divisors (see below), whose sum is σ = 60885088668. Its totient is φ = 19742850000.

The previous prime is 40034123141. The next prime is 40034123159. The reversal of 40034123158 is 85132143004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40034123159) 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 5 ways as a sum of consecutive naturals, for example, 1867468 + ... + 1888783.

It is an arithmetic number, because the mean of its divisors is an integer number (5073757389).

Almost surely, 2^40034123158 is an apocalyptic number.

40034123158 is a deficient number, since it is larger than the sum of its proper divisors (20850965510).

40034123158 is an equidigital number, since it uses as much as digits as its factorization.

40034123158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3756399 (or 3756326 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The spelling of 40034123158 in words is "forty billion, thirty-four million, one hundred twenty-three thousand, one hundred fifty-eight".