73647708163 has 8 divisors (see below), whose sum is σ = 75977379968. Its totient is φ = 71335888704.

The previous prime is 73647708137. The next prime is 73647708203. The reversal of 73647708163 is 36180774637.

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

It is not a de Polignac number, because 73647708163 - 2¹³ = 73647699971 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 73647708163.

It is not an unprimeable number, because it can be changed into a prime (73647708133) 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, 4454706 + ... + 4471207.

It is an arithmetic number, because the mean of its divisors is an integer number (9497172496).

Almost surely, 2^73647708163 is an apocalyptic number.

73647708163 is a deficient number, since it is larger than the sum of its proper divisors (2329671805).

73647708163 is a wasteful number, since it uses less digits than its factorization.

73647708163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8926173.

The product of its (nonzero) digits is 3556224, while the sum is 52.

The spelling of 73647708163 in words is "seventy-three billion, six hundred forty-seven million, seven hundred eight thousand, one hundred sixty-three".