8338338979551 has 32 divisors (see below), whose sum is σ = 14117969349120. Its totient is φ = 4764715607232.

The previous prime is 8338338979489. The next prime is 8338338979559. The reversal of 8338338979551 is 1559798338338.

It is a happy number.

8338338979551 is a `hidden beast` number, since 8 + 3 + 38 + 3 + 38 + 9 + 7 + 9 + 551 = 666.

It is not a de Polignac number, because 8338338979551 - 2²⁵ = 8338305425119 is a prime.

It is a super-2 number, since 2×8338338979551² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8338338979551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8338338979559) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25799116 + ... + 26120318.

It is an arithmetic number, because the mean of its divisors is an integer number (441186542160).

Almost surely, 2^{8338338979551} is an apocalyptic number.

8338338979551 is a deficient number, since it is larger than the sum of its proper divisors (5779630369569).

8338338979551 is a wasteful number, since it uses less digits than its factorization.

8338338979551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458572 (or 458566 counting only the distinct ones).

The product of its digits is 587865600, while the sum is 72.

The spelling of 8338338979551 in words is "eight trillion, three hundred thirty-eight billion, three hundred thirty-eight million, nine hundred seventy-nine thousand, five hundred fifty-one".