72820804363 has 8 divisors (see below), whose sum is σ = 73992995856. Its totient is φ = 71657460000.

The previous prime is 72820804349. The next prime is 72820804411. The reversal of 72820804363 is 36340802827.

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 72820804363 - 2⁹ = 72820803851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72820804313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2195188 + ... + 2228113.

It is an arithmetic number, because the mean of its divisors is an integer number (9249124482).

Almost surely, 2^72820804363 is an apocalyptic number.

72820804363 is a deficient number, since it is larger than the sum of its proper divisors (1172191493).

72820804363 is a wasteful number, since it uses less digits than its factorization.

72820804363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4423565.

The product of its (nonzero) digits is 387072, while the sum is 43.

The spelling of 72820804363 in words is "seventy-two billion, eight hundred twenty million, eight hundred four thousand, three hundred sixty-three".