73253140243 has 24 divisors (see below), whose sum is σ = 78462881280. Its totient is φ = 68258781360.

The previous prime is 73253140231. The next prime is 73253140249. The reversal of 73253140243 is 34204135237.

It is not a de Polignac number, because 73253140243 - 2⁹ = 73253139731 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 73253140199 and 73253140208.

It is not an unprimeable number, because it can be changed into a prime (73253140249) 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 23 ways as a sum of consecutive naturals, for example, 17816758 + ... + 17820868.

It is an arithmetic number, because the mean of its divisors is an integer number (3269286720).

Almost surely, 2^73253140243 is an apocalyptic number.

73253140243 is a deficient number, since it is larger than the sum of its proper divisors (5209741037).

73253140243 is a wasteful number, since it uses less digits than its factorization.

73253140243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4639 (or 4596 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 34.

The spelling of 73253140243 in words is "seventy-three billion, two hundred fifty-three million, one hundred forty thousand, two hundred forty-three".