72723575835 has 48 divisors (see below), whose sum is σ = 128783665920. Its totient is φ = 37953748800.

The previous prime is 72723575801. The next prime is 72723575839. The reversal of 72723575835 is 53857532727.

72723575835 is a `hidden beast` number, since 7 + 2 + 7 + 2 + 3 + 57 + 583 + 5 = 666.

It is not a de Polignac number, because 72723575835 - 2¹¹ = 72723573787 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72723575839) 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 47 ways as a sum of consecutive naturals, for example, 375396 + ... + 535134.

It is an arithmetic number, because the mean of its divisors is an integer number (2682993040).

Almost surely, 2^72723575835 is an apocalyptic number.

72723575835 is a deficient number, since it is larger than the sum of its proper divisors (56060090085).

72723575835 is a wasteful number, since it uses less digits than its factorization.

72723575835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159968 (or 159965 counting only the distinct ones).

The product of its digits is 12348000, while the sum is 54.

The spelling of 72723575835 in words is "seventy-two billion, seven hundred twenty-three million, five hundred seventy-five thousand, eight hundred thirty-five".