12708338550 has 24 divisors (see below), whose sum is σ = 31516679976. Its totient is φ = 3388890240.

The previous prime is 12708338519. The next prime is 12708338563. The reversal of 12708338550 is 5583380721.

It is a super-2 number, since 2×12708338550² (a number of 21 digits) contains 22 as substring.

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 11 ways as a sum of consecutive naturals, for example, 42360979 + ... + 42361278.

It is an arithmetic number, because the mean of its divisors is an integer number (1313194999).

Almost surely, 2^12708338550 is an apocalyptic number.

12708338550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12708338550 is an abundant number, since it is smaller than the sum of its proper divisors (18808341426).

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

12708338550 is a wasteful number, since it uses less digits than its factorization.

12708338550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84722272 (or 84722267 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 42.

The spelling of 12708338550 in words is "twelve billion, seven hundred eight million, three hundred thirty-eight thousand, five hundred fifty".