73513452853 has 4 divisors (see below), whose sum is σ = 73544382220. Its totient is φ = 73482523488.

The previous prime is 73513452851. The next prime is 73513452877. The reversal of 73513452853 is 35825431537.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35825431537 = 7 ⋅5117918791.

It can be written as a sum of positive squares in 2 ways, for example, as 15724658404 + 57788794449 = 125398^2 + 240393^2 .

It is a cyclic number.

It is not a de Polignac number, because 73513452853 - 2¹ = 73513452851 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73513452851) 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, 15461118 + ... + 15465871.

It is an arithmetic number, because the mean of its divisors is an integer number (18386095555).

Almost surely, 2^73513452853 is an apocalyptic number.

It is an amenable number.

73513452853 is a deficient number, since it is larger than the sum of its proper divisors (30929367).

73513452853 is a wasteful number, since it uses less digits than its factorization.

73513452853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30929366.

The product of its digits is 1512000, while the sum is 46.

The spelling of 73513452853 in words is "seventy-three billion, five hundred thirteen million, four hundred fifty-two thousand, eight hundred fifty-three".