8780812140 has 48 divisors (see below), whose sum is σ = 24989338080. Its totient is φ = 2303162880.

The previous prime is 8780812021. The next prime is 8780812141. The reversal of 8780812140 is 412180878.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (8780812141) 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, 1195905 + ... + 1203224.

It is an arithmetic number, because the mean of its divisors is an integer number (520611210).

Almost surely, 2^8780812140 is an apocalyptic number.

It is an amenable number.

8780812140 is an abundant number, since it is smaller than the sum of its proper divisors (16208525940).

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

8780812140 is a wasteful number, since it uses less digits than its factorization.

8780812140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2399202 (or 2399200 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 39.

The square root of 8780812140 is about 93705.9877489160. The cubic root of 8780812140 is about 2063.0585900065.

The spelling of 8780812140 in words is "eight billion, seven hundred eighty million, eight hundred twelve thousand, one hundred forty".