72049723441 has 8 divisors (see below), whose sum is σ = 72375907968. Its totient is φ = 71723850000.

The previous prime is 72049723429. The next prime is 72049723477. The reversal of 72049723441 is 14432794027.

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

It is a cyclic number.

It is not a de Polignac number, because 72049723441 - 2⁹ = 72049722929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72049723411) 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 7 ways as a sum of consecutive naturals, for example, 392911 + ... + 546331.

It is an arithmetic number, because the mean of its divisors is an integer number (9046988496).

Almost surely, 2^72049723441 is an apocalyptic number.

It is an amenable number.

72049723441 is a deficient number, since it is larger than the sum of its proper divisors (326184527).

72049723441 is a wasteful number, since it uses less digits than its factorization.

72049723441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155543.

The product of its (nonzero) digits is 338688, while the sum is 43.

The spelling of 72049723441 in words is "seventy-two billion, forty-nine million, seven hundred twenty-three thousand, four hundred forty-one".