72254245243 has 4 divisors (see below), whose sum is σ = 74207062720. Its totient is φ = 70301427768.

The previous prime is 72254245237. The next prime is 72254245253. The reversal of 72254245243 is 34254245227.

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 72254245243 - 2¹⁷ = 72254114171 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72254245196 and 72254245205.

It is not an unprimeable number, because it can be changed into a prime (72254245253) 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, 976408683 + ... + 976408756.

It is an arithmetic number, because the mean of its divisors is an integer number (18551765680).

Almost surely, 2^72254245243 is an apocalyptic number.

72254245243 is a deficient number, since it is larger than the sum of its proper divisors (1952817477).

72254245243 is a wasteful number, since it uses less digits than its factorization.

72254245243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1952817476.

The product of its digits is 537600, while the sum is 40.

The spelling of 72254245243 in words is "seventy-two billion, two hundred fifty-four million, two hundred forty-five thousand, two hundred forty-three".