74386385142 has 32 divisors (see below), whose sum is σ = 150650502912. Its totient is φ = 24483895584.

The previous prime is 74386385113. The next prime is 74386385149. The reversal of 74386385142 is 24158368347.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74386385149) 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 15 ways as a sum of consecutive naturals, for example, 41008 + ... + 387884.

It is an arithmetic number, because the mean of its divisors is an integer number (4707828216).

Almost surely, 2^74386385142 is an apocalyptic number.

74386385142 is an abundant number, since it is smaller than the sum of its proper divisors (76264117770).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74386385142 is a wasteful number, since it uses less digits than its factorization.

74386385142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347332.

The product of its digits is 3870720, while the sum is 51.

The spelling of 74386385142 in words is "seventy-four billion, three hundred eighty-six million, three hundred eighty-five thousand, one hundred forty-two".