72228960351944 has 64 divisors (see below), whose sum is σ = 148174395223680. Its totient is φ = 32735171008000.

The previous prime is 72228960351943. The next prime is 72228960352009. The reversal of 72228960351944 is 44915306982227.

72228960351944 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (72228960351943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46195124 + ... + 47733084.

It is an arithmetic number, because the mean of its divisors is an integer number (2315224925370).

It is a 1-persistent number, because it is pandigital, but 2⋅72228960351944 = 144457920703888 is not.

Almost surely, 2^{72228960351944} is an apocalyptic number.

It is an amenable number.

72228960351944 is an abundant number, since it is smaller than the sum of its proper divisors (75945434871736).

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

72228960351944 is a wasteful number, since it uses less digits than its factorization.

72228960351944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1539542 (or 1539538 counting only the distinct ones).

The product of its (nonzero) digits is 52254720, while the sum is 62.

The spelling of 72228960351944 in words is "seventy-two trillion, two hundred twenty-eight billion, nine hundred sixty million, three hundred fifty-one thousand, nine hundred forty-four".