12699929855 has 8 divisors (see below), whose sum is σ = 15247351392. Its totient is φ = 10154986848.

The previous prime is 12699929843. The next prime is 12699929887. The reversal of 12699929855 is 55892999621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12699929855 - 2¹² = 12699925759 is a prime.

It is a super-2 number, since 2×12699929855² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12699929791 and 12699929800.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 608339 + ... + 628868.

It is an arithmetic number, because the mean of its divisors is an integer number (1905918924).

Almost surely, 2^12699929855 is an apocalyptic number.

12699929855 is a deficient number, since it is larger than the sum of its proper divisors (2547421537).

12699929855 is a wasteful number, since it uses less digits than its factorization.

12699929855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1239265.

The product of its digits is 31492800, while the sum is 65.

The spelling of 12699929855 in words is "twelve billion, six hundred ninety-nine million, nine hundred twenty-nine thousand, eight hundred fifty-five".