13228768357 has 8 divisors (see below), whose sum is σ = 15122224832. Its totient is φ = 11336220000.

The previous prime is 13228768349. The next prime is 13228768369. The reversal of 13228768357 is 75386782231.

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

It is not a de Polignac number, because 13228768357 - 2³ = 13228768349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13228768387) 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, 195519 + ... + 254332.

It is an arithmetic number, because the mean of its divisors is an integer number (1890278104).

Almost surely, 2^13228768357 is an apocalyptic number.

It is an amenable number.

13228768357 is a deficient number, since it is larger than the sum of its proper divisors (1893456475).

13228768357 is an equidigital number, since it uses as much as digits as its factorization.

13228768357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454059.

The product of its digits is 3386880, while the sum is 52.

The spelling of 13228768357 in words is "thirteen billion, two hundred twenty-eight million, seven hundred sixty-eight thousand, three hundred fifty-seven".