72740017222 has 8 divisors (see below), whose sum is σ = 109192252896. Its totient is φ = 36342599592.

The previous prime is 72740017219. The next prime is 72740017267. The reversal of 72740017222 is 22271004727.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×72740017222² (a number of 23 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 13701193 + ... + 13706500.

It is an arithmetic number, because the mean of its divisors is an integer number (13649031612).

Almost surely, 2^72740017222 is an apocalyptic number.

72740017222 is a deficient number, since it is larger than the sum of its proper divisors (36452235674).

72740017222 is a wasteful number, since it uses less digits than its factorization.

72740017222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27409022.

The product of its (nonzero) digits is 21952, while the sum is 34.

The spelling of 72740017222 in words is "seventy-two billion, seven hundred forty million, seventeen thousand, two hundred twenty-two".