72849246623 has 16 divisors (see below), whose sum is σ = 75774566400. Its totient is φ = 69951984480.

The previous prime is 72849246619. The next prime is 72849246643. The reversal of 72849246623 is 32664294827.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 72849246623 - 2² = 72849246619 is a prime.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72849246643) 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, 10172318 + ... + 10179476.

It is an arithmetic number, because the mean of its divisors is an integer number (4735910400).

Almost surely, 2^72849246623 is an apocalyptic number.

72849246623 is a deficient number, since it is larger than the sum of its proper divisors (2925319777).

72849246623 is a wasteful number, since it uses less digits than its factorization.

72849246623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9062.

The product of its digits is 6967296, while the sum is 53.

The spelling of 72849246623 in words is "seventy-two billion, eight hundred forty-nine million, two hundred forty-six thousand, six hundred twenty-three".