74382581855 has 16 divisors (see below), whose sum is σ = 92435333760. Its totient is φ = 57421922208.

The previous prime is 74382581839. The next prime is 74382581869. The reversal of 74382581855 is 55818528347.

It is a cyclic number.

It is not a de Polignac number, because 74382581855 - 2⁴ = 74382581839 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 74382581855.

It is a congruent number.

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, 2066285 + ... + 2101974.

It is an arithmetic number, because the mean of its divisors is an integer number (5777208360).

Almost surely, 2^74382581855 is an apocalyptic number.

74382581855 is a deficient number, since it is larger than the sum of its proper divisors (18052751905).

74382581855 is a wasteful number, since it uses less digits than its factorization.

74382581855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4168390.

The product of its digits is 10752000, while the sum is 56.

The spelling of 74382581855 in words is "seventy-four billion, three hundred eighty-two million, five hundred eighty-one thousand, eight hundred fifty-five".