72510261500 has 48 divisors (see below), whose sum is σ = 167677866720. Its totient is φ = 27297977600.

The previous prime is 72510261479. The next prime is 72510261529. The reversal of 72510261500 is 516201527.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 4256810 + ... + 4273809.

It is an arithmetic number, because the mean of its divisors is an integer number (3493288890).

Almost surely, 2^72510261500 is an apocalyptic number.

It is an amenable number.

72510261500 is an abundant number, since it is smaller than the sum of its proper divisors (95167605220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72510261500 is a wasteful number, since it uses less digits than its factorization.

72510261500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8530655 (or 8530643 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 29.

The spelling of 72510261500 in words is "seventy-two billion, five hundred ten million, two hundred sixty-one thousand, five hundred".