72926383091 has 4 divisors (see below), whose sum is σ = 76764613800. Its totient is φ = 69088152384.

The previous prime is 72926383073. The next prime is 72926383121. The reversal of 72926383091 is 19038362927.

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 72926383091 - 2¹⁸ = 72926120947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72926383001) 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, 1919115326 + ... + 1919115363.

It is an arithmetic number, because the mean of its divisors is an integer number (19191153450).

Almost surely, 2^72926383091 is an apocalyptic number.

72926383091 is a deficient number, since it is larger than the sum of its proper divisors (3838230709).

72926383091 is a wasteful number, since it uses less digits than its factorization.

72926383091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3838230708.

The product of its (nonzero) digits is 979776, while the sum is 50.

The spelling of 72926383091 in words is "seventy-two billion, nine hundred twenty-six million, three hundred eighty-three thousand, ninety-one".