72510730071 has 16 divisors (see below), whose sum is σ = 110242558944. Its totient is φ = 41997164544.

The previous prime is 72510730067. The next prime is 72510730081. The reversal of 72510730071 is 17003701527.

It is not a de Polignac number, because 72510730071 - 2² = 72510730067 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72510730081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54683146 + ... + 54684471.

It is an arithmetic number, because the mean of its divisors is an integer number (6890159934).

Almost surely, 2^72510730071 is an apocalyptic number.

72510730071 is a deficient number, since it is larger than the sum of its proper divisors (37731828873).

72510730071 is a wasteful number, since it uses less digits than its factorization.

72510730071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109367650.

The product of its (nonzero) digits is 10290, while the sum is 33.

The spelling of 72510730071 in words is "seventy-two billion, five hundred ten million, seven hundred thirty thousand, seventy-one".