72464871250 has 20 divisors (see below), whose sum is σ = 135828157014. Its totient is φ = 28985948000.

The previous prime is 72464871247. The next prime is 72464871289. The reversal of 72464871250 is 5217846427.

It is a Cunningham number, because it is equal to 269193²+1.

It can be written as a sum of positive squares in 5 ways, for example, as 1 + 72464871249 = 1^2 + 269193^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 72464871250.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 28984699 + ... + 28987198.

Almost surely, 2^72464871250 is an apocalyptic number.

72464871250 is a deficient number, since it is larger than the sum of its proper divisors (63363285764).

72464871250 is an equidigital number, since it uses as much as digits as its factorization.

72464871250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57971919 (or 57971904 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 46.

The spelling of 72464871250 in words is "seventy-two billion, four hundred sixty-four million, eight hundred seventy-one thousand, two hundred fifty".