338638617708 has 12 divisors (see below), whose sum is σ = 790156774680. Its totient is φ = 112879539232.

The previous prime is 338638617683. The next prime is 338638617739. The reversal of 338638617708 is 807716836833.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×338638617708² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14109942393 + ... + 14109942416.

It is an arithmetic number, because the mean of its divisors is an integer number (65846397890).

Almost surely, 2^338638617708 is an apocalyptic number.

It is an amenable number.

338638617708 is an abundant number, since it is smaller than the sum of its proper divisors (451518156972).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

338638617708 is a wasteful number, since it uses less digits than its factorization.

338638617708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28219884816 (or 28219884814 counting only the distinct ones).

The product of its (nonzero) digits is 24385536, while the sum is 60.

The spelling of 338638617708 in words is "three hundred thirty-eight billion, six hundred thirty-eight million, six hundred seventeen thousand, seven hundred eight".