73238634853 has 4 divisors (see below), whose sum is σ = 74121028128. Its totient is φ = 72356241580.

The previous prime is 73238634841. The next prime is 73238634907. The reversal of 73238634853 is 35843683237.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 73238634853 - 2⁹ = 73238634341 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 73238634853.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73238634253) 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 3 ways as a sum of consecutive naturals, for example, 441196513 + ... + 441196678.

It is an arithmetic number, because the mean of its divisors is an integer number (18530257032).

Almost surely, 2^73238634853 is an apocalyptic number.

It is an amenable number.

73238634853 is a deficient number, since it is larger than the sum of its proper divisors (882393275).

73238634853 is an equidigital number, since it uses as much as digits as its factorization.

73238634853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 882393274.

The product of its digits is 8709120, while the sum is 52.

The spelling of 73238634853 in words is "seventy-three billion, two hundred thirty-eight million, six hundred thirty-four thousand, eight hundred fifty-three".