73408535435863 has 4 divisors (see below), whose sum is σ = 73408557204288. Its totient is φ = 73408513667440.

The previous prime is 73408535435831. The next prime is 73408535435867. The reversal of 73408535435863 is 36853453580437.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 73408535435863 - 2⁵ = 73408535435831 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 73408535435795 and 73408535435804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73408535435867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4626631 + ... + 12970072.

It is an arithmetic number, because the mean of its divisors is an integer number (18352139301072).

Almost surely, 2^{73408535435863} is an apocalyptic number.

73408535435863 is a deficient number, since it is larger than the sum of its proper divisors (21768425).

73408535435863 is a wasteful number, since it uses less digits than its factorization.

73408535435863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21768424.

The product of its (nonzero) digits is 435456000, while the sum is 64.

The spelling of 73408535435863 in words is "seventy-three trillion, four hundred eight billion, five hundred thirty-five million, four hundred thirty-five thousand, eight hundred sixty-three".