73634882665 has 8 divisors (see below), whose sum is σ = 91408820040. Its totient is φ = 56876598912.

The previous prime is 73634882653. The next prime is 73634882669. The reversal of 73634882665 is 56628843637.

It can be written as a sum of positive squares in 4 ways, for example, as 1263660304 + 72371222361 = 35548^2 + 269019^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 73634882665 - 2⁷ = 73634882537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (73634882669) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 253913244 + ... + 253913533.

It is an arithmetic number, because the mean of its divisors is an integer number (11426102505).

Almost surely, 2^73634882665 is an apocalyptic number.

It is an amenable number.

73634882665 is a deficient number, since it is larger than the sum of its proper divisors (17773937375).

73634882665 is a wasteful number, since it uses less digits than its factorization.

73634882665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507826811.

The product of its digits is 34836480, while the sum is 58.

The spelling of 73634882665 in words is "seventy-three billion, six hundred thirty-four million, eight hundred eighty-two thousand, six hundred sixty-five".