7878203348400 has 480 divisors, whose sum is σ = 34959673152000. Its totient is φ = 1637029094400.

The previous prime is 7878203348399. The next prime is 7878203348417. The reversal of 7878203348400 is 48433028787.

7878203348400 is a `hidden beast` number, since 7 + 87 + 82 + 0 + 3 + 3 + 484 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3905175 + ... + 5568374.

It is an arithmetic number, because the mean of its divisors is an integer number (72832652400).

Almost surely, 2^{7878203348400} is an apocalyptic number.

7878203348400 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

7878203348400 is an abundant number, since it is smaller than the sum of its proper divisors (27081469803600).

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

7878203348400 is a wasteful number, since it uses less digits than its factorization.

7878203348400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9473594 (or 9473577 counting only the distinct ones).

The product of its (nonzero) digits is 7225344, while the sum is 54.

The spelling of 7878203348400 in words is "seven trillion, eight hundred seventy-eight billion, two hundred three million, three hundred forty-eight thousand, four hundred".