7887844452 has 48 divisors (see below), whose sum is σ = 19447464960. Its totient is φ = 2481408288.

The previous prime is 7887844451. The next prime is 7887844463. The reversal of 7887844452 is 2544487887.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a junction number, because it is equal to n+sod(n) for n = 7887844392 and 7887844401.

It is not an unprimeable number, because it can be changed into a prime (7887844451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5808 + ... + 125735.

It is an arithmetic number, because the mean of its divisors is an integer number (405155520).

Almost surely, 2^7887844452 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 7887844452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9723732480).

7887844452 is an abundant number, since it is smaller than the sum of its proper divisors (11559620508).

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

7887844452 is a wasteful number, since it uses less digits than its factorization.

7887844452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131832 (or 131830 counting only the distinct ones).

The product of its digits is 16056320, while the sum is 57.

The square root of 7887844452 is about 88813.5375491822. The cubic root of 7887844452 is about 1990.6096843207.

The spelling of 7887844452 in words is "seven billion, eight hundred eighty-seven million, eight hundred forty-four thousand, four hundred fifty-two".