8240247855 has 112 divisors (see below), whose sum is σ = 17359078464. Its totient is φ = 3674626560.

The previous prime is 8240247839. The next prime is 8240247907. The reversal of 8240247855 is 5587420428.

It is not a de Polignac number, because 8240247855 - 2⁴ = 8240247839 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 8240247855.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 1042177 + ... + 1050053.

It is an arithmetic number, because the mean of its divisors is an integer number (154991772).

Almost surely, 2^8240247855 is an apocalyptic number.

8240247855 is an abundant number, since it is smaller than the sum of its proper divisors (9118830609).

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

8240247855 is an equidigital number, since it uses as much as digits as its factorization.

8240247855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7948 (or 7933 counting only the distinct ones).

The product of its (nonzero) digits is 716800, while the sum is 45.

The square root of 8240247855 is about 90775.8109575453. The cubic root of 8240247855 is about 2019.8235194478.

The spelling of 8240247855 in words is "eight billion, two hundred forty million, two hundred forty-seven thousand, eight hundred fifty-five".