72464090441 has 4 divisors (see below), whose sum is σ = 72464932884. Its totient is φ = 72463248000.

The previous prime is 72464090437. The next prime is 72464090497. The reversal of 72464090441 is 14409046427.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20124259600 + 52339830841 = 141860^2 + 228779^2 .

It is a cyclic number.

It is not a de Polignac number, because 72464090441 - 2² = 72464090437 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72464020441) 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 3 ways as a sum of consecutive naturals, for example, 275360 + ... + 469841.

It is an arithmetic number, because the mean of its divisors is an integer number (18116233221).

Almost surely, 2^72464090441 is an apocalyptic number.

It is an amenable number.

72464090441 is a deficient number, since it is larger than the sum of its proper divisors (842443).

72464090441 is an equidigital number, since it uses as much as digits as its factorization.

72464090441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842442.

The product of its (nonzero) digits is 193536, while the sum is 41.

The spelling of 72464090441 in words is "seventy-two billion, four hundred sixty-four million, ninety thousand, four hundred forty-one".