72509241383 has 4 divisors (see below), whose sum is σ = 72535970688. Its totient is φ = 72482512080.

The previous prime is 72509241373. The next prime is 72509241407. The reversal of 72509241383 is 38314290527.

It is a happy number.

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 72509241383 - 2⁶ = 72509241319 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 (72509241323) 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, 13360583 + ... + 13366008.

It is an arithmetic number, because the mean of its divisors is an integer number (18133992672).

Almost surely, 2^72509241383 is an apocalyptic number.

72509241383 is a deficient number, since it is larger than the sum of its proper divisors (26729305).

72509241383 is a wasteful number, since it uses less digits than its factorization.

72509241383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26729304.

The product of its (nonzero) digits is 362880, while the sum is 44.

The spelling of 72509241383 in words is "seventy-two billion, five hundred nine million, two hundred forty-one thousand, three hundred eighty-three".