72953123263 has 4 divisors (see below), whose sum is σ = 72967133680. Its totient is φ = 72939112848.

The previous prime is 72953123171. The next prime is 72953123279. The reversal of 72953123263 is 36232135927.

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 72953123263 - 2⁹ = 72953122751 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 (72953124263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6997395 + ... + 7007812.

It is an arithmetic number, because the mean of its divisors is an integer number (18241783420).

Almost surely, 2^72953123263 is an apocalyptic number.

72953123263 is a deficient number, since it is larger than the sum of its proper divisors (14010417).

72953123263 is a wasteful number, since it uses less digits than its factorization.

72953123263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14010416.

The product of its digits is 408240, while the sum is 43.

The spelling of 72953123263 in words is "seventy-two billion, nine hundred fifty-three million, one hundred twenty-three thousand, two hundred sixty-three".