73885683887 has 4 divisors (see below), whose sum is σ = 76433466120. Its totient is φ = 71337901656.

The previous prime is 73885683881. The next prime is 73885683889. The reversal of 73885683887 is 78838658837.

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 73885683887 - 2²⁰ = 73884635311 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 73885683887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73885683881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1273891073 + ... + 1273891130.

It is an arithmetic number, because the mean of its divisors is an integer number (19108366530).

Almost surely, 2^73885683887 is an apocalyptic number.

73885683887 is a deficient number, since it is larger than the sum of its proper divisors (2547782233).

73885683887 is a wasteful number, since it uses less digits than its factorization.

73885683887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2547782232.

The product of its digits is 433520640, while the sum is 71.

The spelling of 73885683887 in words is "seventy-three billion, eight hundred eighty-five million, six hundred eighty-three thousand, eight hundred eighty-seven".