8220715336838 has 32 divisors (see below), whose sum is σ = 12903638186880. Its totient is φ = 3923857290240.

The previous prime is 8220715336829. The next prime is 8220715336861. The reversal of 8220715336838 is 8386335170228.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16218548 + ... + 16717736.

It is an arithmetic number, because the mean of its divisors is an integer number (403238693340).

Almost surely, 2^{8220715336838} is an apocalyptic number.

8220715336838 is a deficient number, since it is larger than the sum of its proper divisors (4682922850042).

8220715336838 is a wasteful number, since it uses less digits than its factorization.

8220715336838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503552.

The product of its (nonzero) digits is 11612160, while the sum is 56.

The spelling of 8220715336838 in words is "eight trillion, two hundred twenty billion, seven hundred fifteen million, three hundred thirty-six thousand, eight hundred thirty-eight".