12938858709 has 24 divisors (see below), whose sum is σ = 20715810048. Its totient is φ = 7155126720.

The previous prime is 12938858687. The next prime is 12938858711. The reversal of 12938858709 is 90785883921.

It is not a de Polignac number, because 12938858709 - 2¹³ = 12938850517 is a prime.

It is a super-3 number, since 3×12938858709³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12938858759) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1415112 + ... + 1424225.

It is an arithmetic number, because the mean of its divisors is an integer number (863158752).

Almost surely, 2^12938858709 is an apocalyptic number.

It is an amenable number.

12938858709 is a deficient number, since it is larger than the sum of its proper divisors (7776951339).

12938858709 is a wasteful number, since it uses less digits than its factorization.

12938858709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2839385 (or 2839378 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 60.

The spelling of 12938858709 in words is "twelve billion, nine hundred thirty-eight million, eight hundred fifty-eight thousand, seven hundred nine".