12929684149369 has 9 divisors (see below), whose sum is σ = 14000832862383. Its totient is φ = 11935049911512.

The previous prime is 12929684149307. The next prime is 12929684149411. The reversal of 12929684149369 is 96394148692921.

The square root of 12929684149369 is 3595787.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1912675170025 + 11017008979344 = 1382995^2 + 3319188^2 .

It is not a de Polignac number, because 12929684149369 - 2²³ = 12929675760761 is a prime.

It is a super-2 number, since 2×12929684149369² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12929684149969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 46606932 + ... + 46883530.

Almost surely, 2^{12929684149369} is an apocalyptic number.

12929684149369 is the 3595787-th square number.

12929684149369 is the 1797894-th centered octagonal number.

It is an amenable number.

12929684149369 is a deficient number, since it is larger than the sum of its proper divisors (1071148713014).

12929684149369 is an frugal number, since it uses more digits than its factorization.

12929684149369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553224 (or 276612 counting only the distinct ones).

The product of its digits is 362797056, while the sum is 73.

The spelling of 12929684149369 in words is "twelve trillion, nine hundred twenty-nine billion, six hundred eighty-four million, one hundred forty-nine thousand, three hundred sixty-nine".