72182522036 has 72 divisors (see below), whose sum is σ = 139903761816. Its totient is φ = 32469606400.

The previous prime is 72182522023. The next prime is 72182522101. The reversal of 72182522036 is 63022528127.

It can be written as a sum of positive squares in 12 ways, for example, as 578113936 + 71604408100 = 24044^2 + 267590^2 .

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 5769740 + ... + 5782236.

It is an arithmetic number, because the mean of its divisors is an integer number (1943107803).

Almost surely, 2^72182522036 is an apocalyptic number.

It is an amenable number.

72182522036 is a deficient number, since it is larger than the sum of its proper divisors (67721239780).

72182522036 is a wasteful number, since it uses less digits than its factorization.

72182522036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12677 (or 12646 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 38.

The spelling of 72182522036 in words is "seventy-two billion, one hundred eighty-two million, five hundred twenty-two thousand, thirty-six".