74813737441 has 3 divisors (see below), whose sum is σ = 74814010963. Its totient is φ = 74813463920.

The previous prime is 74813737417. The next prime is 74813737447. The reversal of 74813737441 is 14473731847.

The square root of 74813737441 is 273521.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 55945967841 + 18867769600 = 236529^2 + 137360^2 .

It is not a de Polignac number, because 74813737441 - 2⁹ = 74813736929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74813737447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 136761 + ... + 410281.

Almost surely, 2^74813737441 is an apocalyptic number.

74813737441 is the 273521-st square number.

74813737441 is the 136761-st centered octagonal number.

It is an amenable number.

74813737441 is a deficient number, since it is larger than the sum of its proper divisors (273522).

74813737441 is an frugal number, since it uses more digits than its factorization.

74813737441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547042 (or 273521 counting only the distinct ones).

The product of its digits is 1580544, while the sum is 49.

Multiplying 74813737441 by its sum of digits (49), we get a square (3665873134609 = 1914647²).

The spelling of 74813737441 in words is "seventy-four billion, eight hundred thirteen million, seven hundred thirty-seven thousand, four hundred forty-one".