12338007858 has 32 divisors (see below), whose sum is σ = 29910323520. Its totient is φ = 3738790080.

The previous prime is 12338007841. The next prime is 12338007859. The reversal of 12338007858 is 85870083321.

It is not an unprimeable number, because it can be changed into a prime (12338007859) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10384935 + ... + 10386122.

It is an arithmetic number, because the mean of its divisors is an integer number (934697610).

Almost surely, 2^12338007858 is an apocalyptic number.

12338007858 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12338007858 is an abundant number, since it is smaller than the sum of its proper divisors (17572315662).

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

12338007858 is a wasteful number, since it uses less digits than its factorization.

12338007858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20771079 (or 20771073 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 12338007858 in words is "twelve billion, three hundred thirty-eight million, seven thousand, eight hundred fifty-eight".