8259974561 has 8 divisors (see below), whose sum is σ = 8557332480. Its totient is φ = 7963452112.

The previous prime is 8259974551. The next prime is 8259974563. The reversal of 8259974561 is 1654799528.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8259974561 - 2²² = 8255780257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 8259974497 and 8259974506.

It is not an unprimeable number, because it can be changed into a prime (8259974563) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 188705 + ... + 228318.

It is an arithmetic number, because the mean of its divisors is an integer number (1069666560).

Almost surely, 2^8259974561 is an apocalyptic number.

It is an amenable number.

8259974561 is a deficient number, since it is larger than the sum of its proper divisors (297357919).

8259974561 is a wasteful number, since it uses less digits than its factorization.

8259974561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417735.

The product of its digits is 5443200, while the sum is 56.

The square root of 8259974561 is about 90884.4021876141. The cubic root of 8259974561 is about 2021.4340175986.

The spelling of 8259974561 in words is "eight billion, two hundred fifty-nine million, nine hundred seventy-four thousand, five hundred sixty-one".