12278364750 has 256 divisors, whose sum is σ = 36527811840. Its totient is φ = 3079296000.

The previous prime is 12278364731. The next prime is 12278364793. The reversal of 12278364750 is 5746387221.

12278364750 is a `hidden beast` number, since 12 + 278 + 364 + 7 + 5 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 12278364696 and 12278364705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 9294090 + ... + 9295410.

It is an arithmetic number, because the mean of its divisors is an integer number (142686765).

Almost surely, 2^12278364750 is an apocalyptic number.

12278364750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12278364750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18263905920).

12278364750 is an abundant number, since it is smaller than the sum of its proper divisors (24249447090).

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

12278364750 is an equidigital number, since it uses as much as digits as its factorization.

12278364750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1376 (or 1348 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 45.

The spelling of 12278364750 in words is "twelve billion, two hundred seventy-eight million, three hundred sixty-four thousand, seven hundred fifty".