74505450547 has 4 divisors (see below), whose sum is σ = 81278673336. Its totient is φ = 67732227760.

The previous prime is 74505450529. The next prime is 74505450559.

74505450547 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74505450547 is a prime.

It is a super-2 number, since 2×74505450547² (a number of 23 digits) contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74505450497 and 74505450506.

It is not an unprimeable number, because it can be changed into a prime (74505450517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3386611378 + ... + 3386611399.

It is an arithmetic number, because the mean of its divisors is an integer number (20319668334).

Almost surely, 2^74505450547 is an apocalyptic number.

74505450547 is a deficient number, since it is larger than the sum of its proper divisors (6773222789).

74505450547 is a wasteful number, since it uses less digits than its factorization.

74505450547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6773222788.

The product of its (nonzero) digits is 1960000, while the sum is 46.

The spelling of 74505450547 in words is "seventy-four billion, five hundred five million, four hundred fifty thousand, five hundred forty-seven".