74256522755506 has 32 divisors (see below), whose sum is σ = 137254731949440. Its totient is φ = 29340685334016.

The previous prime is 74256522755479. The next prime is 74256522755549. The reversal of 74256522755506 is 60555722565247.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 246525951 + ... + 246826978.

It is an arithmetic number, because the mean of its divisors is an integer number (4289210373420).

Almost surely, 2^{74256522755506} is an apocalyptic number.

74256522755506 is a deficient number, since it is larger than the sum of its proper divisors (62998209193934).

74256522755506 is a wasteful number, since it uses less digits than its factorization.

74256522755506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493353778.

The product of its (nonzero) digits is 176400000, while the sum is 61.

The spelling of 74256522755506 in words is "seventy-four trillion, two hundred fifty-six billion, five hundred twenty-two million, seven hundred fifty-five thousand, five hundred six".