8380636784 has 40 divisors (see below), whose sum is σ = 17646995520. Its totient is φ = 3832489728.

The previous prime is 8380636783. The next prime is 8380636811. The reversal of 8380636784 is 4876360838.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8380636783) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162152 + ... + 207495.

It is an arithmetic number, because the mean of its divisors is an integer number (441174888).

Almost surely, 2^8380636784 is an apocalyptic number.

It is an amenable number.

8380636784 is an abundant number, since it is smaller than the sum of its proper divisors (9266358736).

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

8380636784 is a wasteful number, since it uses less digits than its factorization.

8380636784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369777 (or 369771 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 53.

The square root of 8380636784 is about 91545.8179492652. The cubic root of 8380636784 is about 2031.2295514167.

The spelling of 8380636784 in words is "eight billion, three hundred eighty million, six hundred thirty-six thousand, seven hundred eighty-four".