72130303748 has 18 divisors (see below), whose sum is σ = 133657313706. Its totient is φ = 33942630144.

The previous prime is 72130303747. The next prime is 72130303807. The reversal of 72130303748 is 84730303127.

It can be written as a sum of positive squares in 3 ways, for example, as 61746286144 + 10384017604 = 248488^2 + 101902^2 .

It is not an unprimeable number, because it can be changed into a prime (72130303747) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2198408 + ... + 2230976.

It is an arithmetic number, because the mean of its divisors is an integer number (7425406317).

Almost surely, 2^72130303748 is an apocalyptic number.

It is an amenable number.

72130303748 is a deficient number, since it is larger than the sum of its proper divisors (61527009958).

72130303748 is an frugal number, since it uses more digits than its factorization.

72130303748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65159 (or 32588 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 38.

The spelling of 72130303748 in words is "seventy-two billion, one hundred thirty million, three hundred three thousand, seven hundred forty-eight".