74017145242 has 4 divisors (see below), whose sum is σ = 111025717866. Its totient is φ = 37008572620.

The previous prime is 74017145233. The next prime is 74017145297. The reversal of 74017145242 is 24254171047.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 71348286321 + 2668858921 = 267111^2 + 51661^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18504286309 + ... + 18504286312.

Almost surely, 2^74017145242 is an apocalyptic number.

74017145242 is a deficient number, since it is larger than the sum of its proper divisors (37008572624).

74017145242 is a wasteful number, since it uses less digits than its factorization.

74017145242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37008572623.

The product of its (nonzero) digits is 62720, while the sum is 37.

The spelling of 74017145242 in words is "seventy-four billion, seventeen million, one hundred forty-five thousand, two hundred forty-two".