74506242553 has 16 divisors (see below), whose sum is σ = 78840115200. Its totient is φ = 70214115600.

The previous prime is 74506242539. The next prime is 74506242583. The reversal of 74506242553 is 35524260547.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74506242553 is a prime.

It is a super-3 number, since 3×74506242553³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74506242523) 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 15 ways as a sum of consecutive naturals, for example, 6141828 + ... + 6153946.

It is an arithmetic number, because the mean of its divisors is an integer number (4927507200).

Almost surely, 2^74506242553 is an apocalyptic number.

It is an amenable number.

74506242553 is a deficient number, since it is larger than the sum of its proper divisors (4333872647).

74506242553 is a wasteful number, since it uses less digits than its factorization.

74506242553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13812.

The product of its (nonzero) digits is 1008000, while the sum is 43.

The spelling of 74506242553 in words is "seventy-four billion, five hundred six million, two hundred forty-two thousand, five hundred fifty-three".