72332045614721 has 4 divisors (see below), whose sum is σ = 72332062846212. Its totient is φ = 72332028383232.

The previous prime is 72332045614669. The next prime is 72332045614739. The reversal of 72332045614721 is 12741654023327.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 16751740366321 + 55580305248400 = 4092889^2 + 7455220^2 .

It is a cyclic number.

It is not a de Polignac number, because 72332045614721 - 2⁴⁶ = 1963301437057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72332045614771) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2240801 + ... + 12234593.

It is an arithmetic number, because the mean of its divisors is an integer number (18083015711553).

Almost surely, 2^{72332045614721} is an apocalyptic number.

It is an amenable number.

72332045614721 is a deficient number, since it is larger than the sum of its proper divisors (17231491).

72332045614721 is an equidigital number, since it uses as much as digits as its factorization.

72332045614721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17231490.

The product of its (nonzero) digits is 1693440, while the sum is 47.

The spelling of 72332045614721 in words is "seventy-two trillion, three hundred thirty-two billion, forty-five million, six hundred fourteen thousand, seven hundred twenty-one".