12938759208 has 80 divisors (see below), whose sum is σ = 36342108000. Its totient is φ = 4300828704.

The previous prime is 12938759173. The next prime is 12938759243. The reversal of 12938759208 is 80295783921.

12938759208 is a `hidden beast` number, since 1 + 2 + 9 + 387 + 59 + 208 = 666.

It is an interprime number because it is at equal distance from previous prime (12938759173) and next prime (12938759243).

It is a super-2 number, since 2×12938759208² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 204823 + ... + 260441.

It is an arithmetic number, because the mean of its divisors is an integer number (454276350).

Almost surely, 2^12938759208 is an apocalyptic number.

12938759208 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12938759208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18171054000).

12938759208 is an abundant number, since it is smaller than the sum of its proper divisors (23403348792).

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

12938759208 is a wasteful number, since it uses less digits than its factorization.

12938759208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55996 (or 55983 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 54.

The spelling of 12938759208 in words is "twelve billion, nine hundred thirty-eight million, seven hundred fifty-nine thousand, two hundred eight".