12911069238 has 16 divisors (see below), whose sum is σ = 26259802560. Its totient is φ = 4230745736.

The previous prime is 12911069231. The next prime is 12911069263. The reversal of 12911069238 is 83296011921.

It is a super-3 number, since 3×12911069238³ (a number of 31 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12911069238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12911069231) 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, 18235620 + ... + 18236327.

It is an arithmetic number, because the mean of its divisors is an integer number (1641237660).

Almost surely, 2^12911069238 is an apocalyptic number.

12911069238 is an abundant number, since it is smaller than the sum of its proper divisors (13348733322).

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

12911069238 is a wasteful number, since it uses less digits than its factorization.

12911069238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36472011.

The product of its (nonzero) digits is 46656, while the sum is 42.

The spelling of 12911069238 in words is "twelve billion, nine hundred eleven million, sixty-nine thousand, two hundred thirty-eight".