8204972545 has 32 divisors (see below), whose sum is σ = 12560993280. Its totient is φ = 4995829440.

The previous prime is 8204972543. The next prime is 8204972563. The reversal of 8204972545 is 5452794028.

It is not a de Polignac number, because 8204972545 - 2¹ = 8204972543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8204972495 and 8204972504.

It is not an unprimeable number, because it can be changed into a prime (8204972543) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 231255 + ... + 264364.

It is an arithmetic number, because the mean of its divisors is an integer number (392531040).

Almost surely, 2^8204972545 is an apocalyptic number.

It is an amenable number.

8204972545 is a deficient number, since it is larger than the sum of its proper divisors (4356020735).

8204972545 is a wasteful number, since it uses less digits than its factorization.

8204972545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495685.

The product of its (nonzero) digits is 806400, while the sum is 46.

The square root of 8204972545 is about 90581.3035068496. The cubic root of 8204972545 is about 2016.9372060458.

The spelling of 8204972545 in words is "eight billion, two hundred four million, nine hundred seventy-two thousand, five hundred forty-five".