8387787040 has 24 divisors (see below), whose sum is σ = 19816147260. Its totient is φ = 3355114752.

The previous prime is 8387786989. The next prime is 8387787047. The reversal of 8387787040 is 407877838.

It can be written as a sum of positive squares in 2 ways, for example, as 7951645584 + 436141456 = 89172^2 + 20884^2 .

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (8387787047) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 26211675 + ... + 26211994.

Almost surely, 2^8387787040 is an apocalyptic number.

8387787040 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8387787040 is an abundant number, since it is smaller than the sum of its proper divisors (11428360220).

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

8387787040 is a wasteful number, since it uses less digits than its factorization.

8387787040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52423684 (or 52423676 counting only the distinct ones).

The product of its (nonzero) digits is 2107392, while the sum is 52.

The square root of 8387787040 is about 91584.8625046738. The cubic root of 8387787040 is about 2031.8070605450.

The spelling of 8387787040 in words is "eight billion, three hundred eighty-seven million, seven hundred eighty-seven thousand, forty".