8453567820 has 48 divisors (see below), whose sum is σ = 23762134368. Its totient is φ = 2245509120.

The previous prime is 8453567809. The next prime is 8453567833. The reversal of 8453567820 is 287653548.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 8453567820.

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, 258691 + ... + 289530.

It is an arithmetic number, because the mean of its divisors is an integer number (495044466).

Almost surely, 2^8453567820 is an apocalyptic number.

It is an amenable number.

8453567820 is an abundant number, since it is smaller than the sum of its proper divisors (15308566548).

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

8453567820 is a wasteful number, since it uses less digits than its factorization.

8453567820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548490 (or 548488 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 48.

The square root of 8453567820 is about 91943.2858886390. The cubic root of 8453567820 is about 2037.1046825860.

The spelling of 8453567820 in words is "eight billion, four hundred fifty-three million, five hundred sixty-seven thousand, eight hundred twenty".