73474650665 has 32 divisors (see below), whose sum is σ = 96373670400. Its totient is φ = 53449526016.

The previous prime is 73474650649. The next prime is 73474650673. The reversal of 73474650665 is 56605647437.

It is a cyclic number.

It is not a de Polignac number, because 73474650665 - 2⁴ = 73474650649 is a prime.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1863344 + ... + 1902366.

It is an arithmetic number, because the mean of its divisors is an integer number (3011677200).

Almost surely, 2^73474650665 is an apocalyptic number.

It is an amenable number.

73474650665 is a deficient number, since it is larger than the sum of its proper divisors (22899019735).

73474650665 is a wasteful number, since it uses less digits than its factorization.

73474650665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39473.

The product of its (nonzero) digits is 12700800, while the sum is 53.

The spelling of 73474650665 in words is "seventy-three billion, four hundred seventy-four million, six hundred fifty thousand, six hundred sixty-five".