12693734871 has 16 divisors (see below), whose sum is σ = 17908093440. Its totient is φ = 7975549440.

The previous prime is 12693734869. The next prime is 12693734897. The reversal of 12693734871 is 17843739621.

It is a happy number.

It is not a de Polignac number, because 12693734871 - 2¹ = 12693734869 is a prime.

It is a super-2 number, since 2×12693734871² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12693734831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 565935 + ... + 587936.

It is an arithmetic number, because the mean of its divisors is an integer number (1119255840).

Almost surely, 2^12693734871 is an apocalyptic number.

12693734871 is a deficient number, since it is larger than the sum of its proper divisors (5214358569).

12693734871 is a wasteful number, since it uses less digits than its factorization.

12693734871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1154086.

The product of its digits is 1524096, while the sum is 51.

The spelling of 12693734871 in words is "twelve billion, six hundred ninety-three million, seven hundred thirty-four thousand, eight hundred seventy-one".