72781850099 has 8 divisors (see below), whose sum is σ = 83185225728. Its totient is φ = 62379966600.

The previous prime is 72781850093. The next prime is 72781850111. The reversal of 72781850099 is 99005818727.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 72781850099 - 2⁸ = 72781849843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72781850093) 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 7 ways as a sum of consecutive naturals, for example, 266477 + ... + 465374.

It is an arithmetic number, because the mean of its divisors is an integer number (10398153216).

Almost surely, 2^72781850099 is an apocalyptic number.

72781850099 is a deficient number, since it is larger than the sum of its proper divisors (10403375629).

72781850099 is a wasteful number, since it uses less digits than its factorization.

72781850099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746065.

The product of its (nonzero) digits is 2540160, while the sum is 56.

The spelling of 72781850099 in words is "seventy-two billion, seven hundred eighty-one million, eight hundred fifty thousand, ninety-nine".