72303249911 has 4 divisors (see below), whose sum is σ = 72517799952. Its totient is φ = 72088699872.

The previous prime is 72303249901. The next prime is 72303249923. The reversal of 72303249911 is 11994230327.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 72303249911 - 2⁶ = 72303249847 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 (72303249901) 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, 107274515 + ... + 107275188.

It is an arithmetic number, because the mean of its divisors is an integer number (18129449988).

Almost surely, 2^72303249911 is an apocalyptic number.

72303249911 is a deficient number, since it is larger than the sum of its proper divisors (214550041).

72303249911 is a wasteful number, since it uses less digits than its factorization.

72303249911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214550040.

The product of its (nonzero) digits is 81648, while the sum is 41.

The spelling of 72303249911 in words is "seventy-two billion, three hundred three million, two hundred forty-nine thousand, nine hundred eleven".