72513756807 has 8 divisors (see below), whose sum is σ = 97191214080. Its totient is φ = 48089402040.

The previous prime is 72513756797. The next prime is 72513756827. The reversal of 72513756807 is 70865731527.

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

It is not a de Polignac number, because 72513756807 - 2⁶ = 72513756743 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72513756807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72513756827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63274957 + ... + 63276102.

It is an arithmetic number, because the mean of its divisors is an integer number (12148901760).

Almost surely, 2^72513756807 is an apocalyptic number.

72513756807 is a deficient number, since it is larger than the sum of its proper divisors (24677457273).

72513756807 is a wasteful number, since it uses less digits than its factorization.

72513756807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126551253.

The product of its (nonzero) digits is 2469600, while the sum is 51.

The spelling of 72513756807 in words is "seventy-two billion, five hundred thirteen million, seven hundred fifty-six thousand, eight hundred seven".