74866066847 has 32 divisors (see below), whose sum is σ = 89739316800. Its totient is φ = 61553157120.

The previous prime is 74866066841. The next prime is 74866066903.

74866066847 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 74866066847 - 2¹⁶ = 74866001311 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 74866066847.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74866066841) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5730779 + ... + 5743827.

It is an arithmetic number, because the mean of its divisors is an integer number (2804353650).

Almost surely, 2^74866066847 is an apocalyptic number.

74866066847 is a deficient number, since it is larger than the sum of its proper divisors (14873249953).

74866066847 is a wasteful number, since it uses less digits than its factorization.

74866066847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13883.

The product of its (nonzero) digits is 65028096, while the sum is 62.

The spelling of 74866066847 in words is "seventy-four billion, eight hundred sixty-six million, sixty-six thousand, eight hundred forty-seven".