12878715750 has 64 divisors (see below), whose sum is σ = 32532724224. Its totient is φ = 3392930400.

The previous prime is 12878715743. The next prime is 12878715757. The reversal of 12878715750 is 5751787821.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12878715743) and next prime (12878715757).

It is a super-2 number, since 2×12878715750² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12878715693 and 12878715702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12878715757) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41194 + ... + 165693.

It is an arithmetic number, because the mean of its divisors is an integer number (508323816).

Almost surely, 2^12878715750 is an apocalyptic number.

12878715750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12878715750 is an abundant number, since it is smaller than the sum of its proper divisors (19654008474).

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

12878715750 is a wasteful number, since it uses less digits than its factorization.

12878715750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206990 (or 206980 counting only the distinct ones).

The product of its (nonzero) digits is 1097600, while the sum is 51.

The spelling of 12878715750 in words is "twelve billion, eight hundred seventy-eight million, seven hundred fifteen thousand, seven hundred fifty".