8118563700780 has 72 divisors (see below), whose sum is σ = 26520641430192. Its totient is φ = 1998415679616.

The previous prime is 8118563700773. The next prime is 8118563700781. The reversal of 8118563700780 is 870073658118.

It is a happy number.

8118563700780 is a `hidden beast` number, since 8 + 1 + 1 + 8 + 563 + 7 + 0 + 0 + 78 + 0 = 666.

It is a super-2 number, since 2×8118563700780² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8118563700781) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1734733494 + ... + 1734738173.

It is an arithmetic number, because the mean of its divisors is an integer number (368342242086).

Almost surely, 2^{8118563700780} is an apocalyptic number.

It is an amenable number.

8118563700780 is an abundant number, since it is smaller than the sum of its proper divisors (18402077729412).

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

8118563700780 is a wasteful number, since it uses less digits than its factorization.

8118563700780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3469471695 (or 3469471690 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 54.

The spelling of 8118563700780 in words is "eight trillion, one hundred eighteen billion, five hundred sixty-three million, seven hundred thousand, seven hundred eighty".