72000535722 has 32 divisors (see below), whose sum is σ = 148485814848. Its totient is φ = 23263633536.

The previous prime is 72000535631. The next prime is 72000535729. The reversal of 72000535722 is 22753500027.

It is a super-2 number, since 2×72000535722² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (72000535729) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1337563 + ... + 1390350.

It is an arithmetic number, because the mean of its divisors is an integer number (4640181714).

Almost surely, 2^72000535722 is an apocalyptic number.

72000535722 is an abundant number, since it is smaller than the sum of its proper divisors (76485279126).

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

72000535722 is a wasteful number, since it uses less digits than its factorization.

72000535722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2728054.

The product of its (nonzero) digits is 29400, while the sum is 33.

The spelling of 72000535722 in words is "seventy-two billion, five hundred thirty-five thousand, seven hundred twenty-two".