74256522755507 has 4 divisors (see below), whose sum is σ = 74257798940160. Its totient is φ = 74255246570856.

The previous prime is 74256522755479. The next prime is 74256522755549. The reversal of 74256522755507 is 70555722565247.

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

It is a cyclic number.

It is not a de Polignac number, because 74256522755507 - 2⁸ = 74256522755251 is a prime.

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 74256522755507.

It is not an unprimeable number, because it can be changed into a prime (74256522754507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 638005043 + ... + 638121420.

It is an arithmetic number, because the mean of its divisors is an integer number (18564449735040).

Almost surely, 2^{74256522755507} is an apocalyptic number.

74256522755507 is a deficient number, since it is larger than the sum of its proper divisors (1276184653).

74256522755507 is a wasteful number, since it uses less digits than its factorization.

74256522755507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1276184652.

The product of its (nonzero) digits is 205800000, while the sum is 62.

The spelling of 74256522755507 in words is "seventy-four trillion, two hundred fifty-six billion, five hundred twenty-two million, seven hundred fifty-five thousand, five hundred seven".