7884628812 has 72 divisors (see below), whose sum is σ = 20728635200. Its totient is φ = 2524773888.

The previous prime is 7884628783. The next prime is 7884628831. The reversal of 7884628812 is 2188264887.

7884628812 is a `hidden beast` number, since 7 + 8 + 8 + 4 + 628 + 8 + 1 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67764 + ... + 142692.

Almost surely, 2^7884628812 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 7884628812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10364317600).

7884628812 is an abundant number, since it is smaller than the sum of its proper divisors (12844006388).

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

7884628812 is a wasteful number, since it uses less digits than its factorization.

7884628812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75055 (or 75050 counting only the distinct ones).

The product of its digits is 2752512, while the sum is 54.

The square root of 7884628812 is about 88795.4323825274. The cubic root of 7884628812 is about 1990.3391433972.

The spelling of 7884628812 in words is "seven billion, eight hundred eighty-four million, six hundred twenty-eight thousand, eight hundred twelve".