74112021146 has 16 divisors (see below), whose sum is σ = 112481720064. Its totient is φ = 36620541024.

The previous prime is 74112021143. The next prime is 74112021149. The reversal of 74112021146 is 64112021147.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (74112021143) and next prime (74112021149).

It is not an unprimeable number, because it can be changed into a prime (74112021143) 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 7 ways as a sum of consecutive naturals, for example, 545360 + ... + 667563.

It is an arithmetic number, because the mean of its divisors is an integer number (7030107504).

Almost surely, 2^74112021146 is an apocalyptic number.

74112021146 is a deficient number, since it is larger than the sum of its proper divisors (38369698918).

74112021146 is a wasteful number, since it uses less digits than its factorization.

74112021146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1213285.

The product of its (nonzero) digits is 2688, while the sum is 29.

Subtracting from 74112021146 its reverse (64112021147), we obtain a palindrome (9999999999).

The spelling of 74112021146 in words is "seventy-four billion, one hundred twelve million, twenty-one thousand, one hundred forty-six".