74112021147 has 16 divisors (see below), whose sum is σ = 103157683200. Its totient is φ = 47239074432.

The previous prime is 74112021143. The next prime is 74112021149.

74112021147 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 74112021147 - 2² = 74112021143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74112021143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77022 + ... + 392627.

It is an arithmetic number, because the mean of its divisors is an integer number (6447355200).

Almost surely, 2^74112021147 is an apocalyptic number.

74112021147 is a deficient number, since it is larger than the sum of its proper divisors (29045662053).

74112021147 is a wasteful number, since it uses less digits than its factorization.

74112021147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471962.

The product of its (nonzero) digits is 3136, while the sum is 30.

It can be divided in two parts, 741120 and 21147, that added together give a palindrome (762267).

The spelling of 74112021147 in words is "seventy-four billion, one hundred twelve million, twenty-one thousand, one hundred forty-seven".