72542302352 has 40 divisors (see below), whose sum is σ = 160265976696. Its totient is φ = 31511586816.

The previous prime is 72542302333. The next prime is 72542302451. The reversal of 72542302352 is 25320324527.

It can be written as a sum of positive squares in 4 ways, for example, as 6885376 + 72535416976 = 2624^2 + 269324^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10254143 + ... + 10261214.

Almost surely, 2^72542302352 is an apocalyptic number.

It is an amenable number.

72542302352 is an abundant number, since it is smaller than the sum of its proper divisors (87723674344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72542302352 is a wasteful number, since it uses less digits than its factorization.

72542302352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20515395 (or 20515389 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 35.

Adding to 72542302352 its reverse (25320324527), we get a palindrome (97862626879).

The spelling of 72542302352 in words is "seventy-two billion, five hundred forty-two million, three hundred two thousand, three hundred fifty-two".