74451482145 has 24 divisors (see below), whose sum is σ = 129061573992. Its totient is φ = 39703660800.

The previous prime is 74451482143. The next prime is 74451482153. The reversal of 74451482145 is 54128415447.

74451482145 is a `hidden beast` number, since 7 + 44 + 514 + 82 + 14 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 15698085264 + 58753396881 = 125292^2 + 242391^2 .

It is not a de Polignac number, because 74451482145 - 2¹ = 74451482143 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 74451482145.

It is not an unprimeable number, because it can be changed into a prime (74451482143) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 433285 + ... + 580205.

It is an arithmetic number, because the mean of its divisors is an integer number (5377565583).

Almost surely, 2^74451482145 is an apocalyptic number.

It is an amenable number.

74451482145 is a deficient number, since it is larger than the sum of its proper divisors (54610091847).

74451482145 is a wasteful number, since it uses less digits than its factorization.

74451482145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158193 (or 158190 counting only the distinct ones).

The product of its digits is 716800, while the sum is 45.

The spelling of 74451482145 in words is "seventy-four billion, four hundred fifty-one million, four hundred eighty-two thousand, one hundred forty-five".