12678223019400 has 1152 divisors, whose sum is σ = 47365922672640. Its totient is φ = 3028886784000.

The previous prime is 12678223019353. The next prime is 12678223019417. The reversal of 12678223019400 is 491032287621.

12678223019400 is a `hidden beast` number, since 1 + 2 + 6 + 7 + 8 + 2 + 230 + 1 + 9 + 400 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 4676584045 + ... + 4676586755.

It is an arithmetic number, because the mean of its divisors is an integer number (41116252320).

Almost surely, 2^{12678223019400} is an apocalyptic number.

12678223019400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12678223019400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23682961336320).

12678223019400 is an abundant number, since it is smaller than the sum of its proper divisors (34687699653240).

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

12678223019400 is a wasteful number, since it uses less digits than its factorization.

12678223019400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2907 (or 2895 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 12678223019400 in words is "twelve trillion, six hundred seventy-eight billion, two hundred twenty-three million, nineteen thousand, four hundred".