74560647163 has 4 divisors (see below), whose sum is σ = 74837824560. Its totient is φ = 74283469768.

The previous prime is 74560647103. The next prime is 74560647173. The reversal of 74560647163 is 36174606547.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36174606547 = 13633 ⋅2653459.

It is a cyclic number.

It is not a de Polignac number, because 74560647163 - 2⁹ = 74560646651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74560647103) 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, 138588295 + ... + 138588832.

It is an arithmetic number, because the mean of its divisors is an integer number (18709456140).

Almost surely, 2^74560647163 is an apocalyptic number.

74560647163 is a deficient number, since it is larger than the sum of its proper divisors (277177397).

74560647163 is a wasteful number, since it uses less digits than its factorization.

74560647163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277177396.

The product of its (nonzero) digits is 2540160, while the sum is 49.

The spelling of 74560647163 in words is "seventy-four billion, five hundred sixty million, six hundred forty-seven thousand, one hundred sixty-three".