7684870878 has 48 divisors (see below), whose sum is σ = 16916245632. Its totient is φ = 2520882000.

The previous prime is 7684870873. The next prime is 7684870901. The reversal of 7684870878 is 8780784867.

7684870878 is a `hidden beast` number, since 76 + 8 + 487 + 0 + 87 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7684870873) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 724473 + ... + 735003.

It is an arithmetic number, because the mean of its divisors is an integer number (352421784).

Almost surely, 2^7684870878 is an apocalyptic number.

7684870878 is an abundant number, since it is smaller than the sum of its proper divisors (9231374754).

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

7684870878 is a wasteful number, since it uses less digits than its factorization.

7684870878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11181 (or 11178 counting only the distinct ones).

The product of its (nonzero) digits is 33718272, while the sum is 63.

The square root of 7684870878 is about 87663.3953141218. The cubic root of 7684870878 is about 1973.3866761119.

The spelling of 7684870878 in words is "seven billion, six hundred eighty-four million, eight hundred seventy thousand, eight hundred seventy-eight".