8274578261 has 8 divisors (see below), whose sum is σ = 8728742880. Its totient is φ = 7822279728.

The previous prime is 8274578227. The next prime is 8274578267. The reversal of 8274578261 is 1628754728.

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 8274578261 - 2²⁶ = 8207469397 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8274578267) 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, 457406 + ... + 475151.

It is an arithmetic number, because the mean of its divisors is an integer number (1091092860).

Almost surely, 2^8274578261 is an apocalyptic number.

It is an amenable number.

8274578261 is a deficient number, since it is larger than the sum of its proper divisors (454164619).

8274578261 is a wasteful number, since it uses less digits than its factorization.

8274578261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 933043.

The product of its digits is 1505280, while the sum is 50.

The square root of 8274578261 is about 90964.7088765748. The cubic root of 8274578261 is about 2022.6246199574.

The spelling of 8274578261 in words is "eight billion, two hundred seventy-four million, five hundred seventy-eight thousand, two hundred sixty-one".