12357806508 has 36 divisors (see below), whose sum is σ = 31242550248. Its totient is φ = 4118640960.

The previous prime is 12357806431. The next prime is 12357806519. The reversal of 12357806508 is 80560875321.

12357806508 is a `hidden beast` number, since 1 + 23 + 578 + 0 + 6 + 50 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 254560 + ... + 299192.

It is an arithmetic number, because the mean of its divisors is an integer number (867848618).

Almost surely, 2^12357806508 is an apocalyptic number.

12357806508 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12357806508 is an abundant number, since it is smaller than the sum of its proper divisors (18884743740).

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

12357806508 is a wasteful number, since it uses less digits than its factorization.

12357806508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52334 (or 52329 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The spelling of 12357806508 in words is "twelve billion, three hundred fifty-seven million, eight hundred six thousand, five hundred eight".