7878859200 has 672 divisors, whose sum is σ = 31370016000. Its totient is φ = 1916006400.

The previous prime is 7878859199. The next prime is 7878859201. The reversal of 7878859200 is 29588787.

It is an interprime number because it is at equal distance from previous prime (7878859199) and next prime (7878859201).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7878859201) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 23803035 + ... + 23803365.

Almost surely, 2^7878859200 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7878859200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15685008000).

7878859200 is an abundant number, since it is smaller than the sum of its proper divisors (23491156800).

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

7878859200 is a wasteful number, since it uses less digits than its factorization.

7878859200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410 (or 389 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 54.

The square root of 7878859200 is about 88762.9382118461. The cubic root of 7878859200 is about 1989.8535451085.

The spelling of 7878859200 in words is "seven billion, eight hundred seventy-eight million, eight hundred fifty-nine thousand, two hundred".