8499540780 has 72 divisors (see below), whose sum is σ = 25789873200. Its totient is φ = 2265846912.

The previous prime is 8499540757. The next prime is 8499540781. The reversal of 8499540780 is 870459948.

8499540780 is a `hidden beast` number, since 8 + 4 + 99 + 540 + 7 + 8 + 0 = 666.

It is not an unprimeable number, because it can be changed into a prime (8499540781) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 878811 + ... + 888429.

Almost surely, 2^8499540780 is an apocalyptic number.

It is an amenable number.

8499540780 is an abundant number, since it is smaller than the sum of its proper divisors (17290332420).

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

8499540780 is a wasteful number, since it uses less digits than its factorization.

8499540780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14543 (or 14538 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The square root of 8499540780 is about 92192.9540691695. The cubic root of 8499540780 is about 2040.7907977937.

The spelling of 8499540780 in words is "eight billion, four hundred ninety-nine million, five hundred forty thousand, seven hundred eighty".