7878897180 has 648 divisors, whose sum is σ = 32332272336. Its totient is φ = 1535385600.

The previous prime is 7878897167. The next prime is 7878897223. The reversal of 7878897180 is 817988787.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 28038640 + ... + 28038920.

It is an arithmetic number, because the mean of its divisors is an integer number (49895482).

Almost surely, 2^7878897180 is an apocalyptic number.

7878897180 is a gapful number since it is divisible by the number (70) 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 7878897180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16166136168).

7878897180 is an abundant number, since it is smaller than the sum of its proper divisors (24453375156).

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

7878897180 is a wasteful number, since it uses less digits than its factorization.

7878897180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355 (or 326 counting only the distinct ones).

The product of its (nonzero) digits is 12644352, while the sum is 63.

The square root of 7878897180 is about 88763.1521522304. The cubic root of 7878897180 is about 1989.8567424629.

The spelling of 7878897180 in words is "seven billion, eight hundred seventy-eight million, eight hundred ninety-seven thousand, one hundred eighty".