8387749536 has 48 divisors (see below), whose sum is σ = 22212719424. Its totient is φ = 2771170304.

The previous prime is 8387749501. The next prime is 8387749541. The reversal of 8387749536 is 6359477838.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 8387749536.

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 7 ways as a sum of consecutive naturals, for example, 375756 + ... + 397451.

It is an arithmetic number, because the mean of its divisors is an integer number (462764988).

Almost surely, 2^8387749536 is an apocalyptic number.

It is an amenable number.

8387749536 is an abundant number, since it is smaller than the sum of its proper divisors (13824969888).

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

8387749536 is a wasteful number, since it uses less digits than its factorization.

8387749536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773333 (or 773325 counting only the distinct ones).

The product of its digits is 30481920, while the sum is 60.

The square root of 8387749536 is about 91584.6577544514. The cubic root of 8387749536 is about 2031.8040322928.

The spelling of 8387749536 in words is "eight billion, three hundred eighty-seven million, seven hundred forty-nine thousand, five hundred thirty-six".