72247179944 has 16 divisors (see below), whose sum is σ = 135466346400. Its totient is φ = 36122820912.

The previous prime is 72247179941. The next prime is 72247179971. The reversal of 72247179944 is 44997174227.

It is a self number, because there is not a number n which added to its sum of digits gives 72247179944.

It is not an unprimeable number, because it can be changed into a prime (72247179941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 597629 + ... + 708275.

It is an arithmetic number, because the mean of its divisors is an integer number (8466646650).

Almost surely, 2^72247179944 is an apocalyptic number.

It is an amenable number.

72247179944 is a deficient number, since it is larger than the sum of its proper divisors (63219166456).

72247179944 is a wasteful number, since it uses less digits than its factorization.

72247179944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192272 (or 192268 counting only the distinct ones).

The product of its digits is 7112448, while the sum is 56.

The spelling of 72247179944 in words is "seventy-two billion, two hundred forty-seven million, one hundred seventy-nine thousand, nine hundred forty-four".