72323182628 has 6 divisors (see below), whose sum is σ = 126565569606. Its totient is φ = 36161591312.

The previous prime is 72323182627. The next prime is 72323182663. The reversal of 72323182628 is 82628132327.

It can be written as a sum of positive squares in only one way, i.e., 61316654884 + 11006527744 = 247622^2 + 104912^2 .

It is not an unprimeable number, because it can be changed into a prime (72323182627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9040397825 + ... + 9040397832.

It is an arithmetic number, because the mean of its divisors is an integer number (21094261601).

Almost surely, 2^72323182628 is an apocalyptic number.

It is an amenable number.

72323182628 is a deficient number, since it is larger than the sum of its proper divisors (54242386978).

72323182628 is a wasteful number, since it uses less digits than its factorization.

72323182628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18080795661 (or 18080795659 counting only the distinct ones).

The product of its digits is 387072, while the sum is 44.

The spelling of 72323182628 in words is "seventy-two billion, three hundred twenty-three million, one hundred eighty-two thousand, six hundred twenty-eight".