8115380912784 has 80 divisors (see below), whose sum is σ = 21734817257664. Its totient is φ = 2607351244800.

The previous prime is 8115380912669. The next prime is 8115380912789. The reversal of 8115380912784 is 4872190835118.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (8115380912789) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24678037 + ... + 25004724.

Almost surely, 2^{8115380912784} is an apocalyptic number.

It is an amenable number.

8115380912784 is an abundant number, since it is smaller than the sum of its proper divisors (13619436344880).

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

8115380912784 is a wasteful number, since it uses less digits than its factorization.

8115380912784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49682896 (or 49682890 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 57.

The spelling of 8115380912784 in words is "eight trillion, one hundred fifteen billion, three hundred eighty million, nine hundred twelve thousand, seven hundred eighty-four".