12339258678 has 48 divisors (see below), whose sum is σ = 27020771856. Its totient is φ = 4069195200.

The previous prime is 12339258677. The next prime is 12339258683. The reversal of 12339258678 is 87685293321.

12339258678 is a `hidden beast` number, since 1 + 23 + 39 + 2 + 586 + 7 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12339258677) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4021701 + ... + 4024767.

It is an arithmetic number, because the mean of its divisors is an integer number (562932747).

Almost surely, 2^12339258678 is an apocalyptic number.

12339258678 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12339258678 is an abundant number, since it is smaller than the sum of its proper divisors (14681513178).

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

12339258678 is a wasteful number, since it uses less digits than its factorization.

12339258678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5389 (or 5386 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 54.

The spelling of 12339258678 in words is "twelve billion, three hundred thirty-nine million, two hundred fifty-eight thousand, six hundred seventy-eight".