74522448144 has 75 divisors (see below), whose sum is σ = 215718033223. Its totient is φ = 24837540192.

The previous prime is 74522448113. The next prime is 74522448149. The reversal of 74522448144 is 44184422547.

The square root of 74522448144 is 272988.

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

74522448144 is a `hidden beast` number, since 7 + 4 + 522 + 4 + 4 + 81 + 44 = 666.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 74522448144.

It is not an unprimeable number, because it can be changed into a prime (74522448149) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 9823777 + ... + 9831359.

Almost surely, 2^74522448144 is an apocalyptic number.

74522448144 is the 272988-th square number.

It is an amenable number.

74522448144 is an abundant number, since it is smaller than the sum of its proper divisors (141195585079).

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

74522448144 is an frugal number, since it uses more digits than its factorization.

74522448144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15186 (or 7588 counting only the distinct ones).

The product of its digits is 1146880, while the sum is 45.

The spelling of 74522448144 in words is "seventy-four billion, five hundred twenty-two million, four hundred forty-eight thousand, one hundred forty-four".