8305277820 has 48 divisors (see below), whose sum is σ = 26576890368. Its totient is φ = 1898349120.

The previous prime is 8305277749. The next prime is 8305277831. The reversal of 8305277820 is 287725038.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9886816 + ... + 9887655.

It is an arithmetic number, because the mean of its divisors is an integer number (553685216).

Almost surely, 2^8305277820 is an apocalyptic number.

It is an amenable number.

8305277820 is an abundant number, since it is smaller than the sum of its proper divisors (18271612548).

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

8305277820 is a wasteful number, since it uses less digits than its factorization.

8305277820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19774490 (or 19774488 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 42.

The square root of 8305277820 is about 91133.2969885321. The cubic root of 8305277820 is about 2025.1229164834.

The spelling of 8305277820 in words is "eight billion, three hundred five million, two hundred seventy-seven thousand, eight hundred twenty".