72814213838 has 8 divisors (see below), whose sum is σ = 109222488720. Its totient is φ = 36406717600.

The previous prime is 72814213831. The next prime is 72814213847. The reversal of 72814213838 is 83831241827.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 72814213792 and 72814213801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72814213831) 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, 195638 + ... + 428838.

It is an arithmetic number, because the mean of its divisors is an integer number (13652811090).

Almost surely, 2^72814213838 is an apocalyptic number.

72814213838 is a deficient number, since it is larger than the sum of its proper divisors (36408274882).

72814213838 is a wasteful number, since it uses less digits than its factorization.

72814213838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389322.

The product of its digits is 516096, while the sum is 47.

The spelling of 72814213838 in words is "seventy-two billion, eight hundred fourteen million, two hundred thirteen thousand, eight hundred thirty-eight".