40142050138 has 16 divisors (see below), whose sum is σ = 61877742624. Its totient is φ = 19516790160.

The previous prime is 40142050103. The next prime is 40142050147. The reversal of 40142050138 is 83105024104.

It is a super-2 number, since 2×40142050138² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 39348 + ... + 286063.

It is an arithmetic number, because the mean of its divisors is an integer number (3867358914).

Almost surely, 2^40142050138 is an apocalyptic number.

40142050138 is a deficient number, since it is larger than the sum of its proper divisors (21735692486).

40142050138 is a wasteful number, since it uses less digits than its factorization.

40142050138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327117.

The product of its (nonzero) digits is 3840, while the sum is 28.

The spelling of 40142050138 in words is "forty billion, one hundred forty-two million, fifty thousand, one hundred thirty-eight".