8278771650 has 48 divisors (see below), whose sum is σ = 21193667328. Its totient is φ = 2136456000.

The previous prime is 8278771649. The next prime is 8278771703. The reversal of 8278771650 is 561778728.

It is a junction number, because it is equal to n+sod(n) for n = 8278771593 and 8278771602.

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 23 ways as a sum of consecutive naturals, for example, 885541 + ... + 894840.

It is an arithmetic number, because the mean of its divisors is an integer number (441534736).

Almost surely, 2^8278771650 is an apocalyptic number.

8278771650 is an abundant number, since it is smaller than the sum of its proper divisors (12914895678).

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

8278771650 is a wasteful number, since it uses less digits than its factorization.

8278771650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1780427 (or 1780422 counting only the distinct ones).

The product of its (nonzero) digits is 1317120, while the sum is 51.

The square root of 8278771650 is about 90987.7554949016. The cubic root of 8278771650 is about 2022.9662373463.

The spelling of 8278771650 in words is "eight billion, two hundred seventy-eight million, seven hundred seventy-one thousand, six hundred fifty".