8742268261 has 8 divisors (see below), whose sum is σ = 8792189504. Its totient is φ = 8692427520.

The previous prime is 8742268193. The next prime is 8742268267. The reversal of 8742268261 is 1628622478.

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 8742268261 - 2⁹ = 8742267749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8742268267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204805 + ... + 243781.

It is an arithmetic number, because the mean of its divisors is an integer number (1099023688).

Almost surely, 2^8742268261 is an apocalyptic number.

It is an amenable number.

8742268261 is a deficient number, since it is larger than the sum of its proper divisors (49921243).

8742268261 is a wasteful number, since it uses less digits than its factorization.

8742268261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40251.

The product of its digits is 516096, while the sum is 46.

The square root of 8742268261 is about 93500.0976523554. The cubic root of 8742268261 is about 2060.0355243348.

The spelling of 8742268261 in words is "eight billion, seven hundred forty-two million, two hundred sixty-eight thousand, two hundred sixty-one".