72828275938 has 12 divisors (see below), whose sum is σ = 120076372710. Its totient is φ = 33103761680.

The previous prime is 72828275899. The next prime is 72828275941. The reversal of 72828275938 is 83957282827.

It can be written as a sum of positive squares in only one way, i.e., 72233550169 + 594725769 = 268763^2 + 24387^2 .

It is a super-2 number, since 2×72828275938² (a number of 23 digits) contains 22 as substring.

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 5 ways as a sum of consecutive naturals, for example, 150471403 + ... + 150471886.

Almost surely, 2^72828275938 is an apocalyptic number.

72828275938 is a deficient number, since it is larger than the sum of its proper divisors (47248096772).

72828275938 is a wasteful number, since it uses less digits than its factorization.

72828275938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300943313 (or 300943302 counting only the distinct ones).

The product of its digits is 27095040, while the sum is 61.

The spelling of 72828275938 in words is "seventy-two billion, eight hundred twenty-eight million, two hundred seventy-five thousand, nine hundred thirty-eight".