8461727851 has 4 divisors (see below), whose sum is σ = 8753511600. Its totient is φ = 8169944104.

The previous prime is 8461727821. The next prime is 8461727863. The reversal of 8461727851 is 1587271648.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8461727851 - 2⁵ = 8461727819 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8461727795 and 8461727804.

It is not an unprimeable number, because it can be changed into a prime (8461727821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145891831 + ... + 145891888.

It is an arithmetic number, because the mean of its divisors is an integer number (2188377900).

Almost surely, 2^8461727851 is an apocalyptic number.

8461727851 is a deficient number, since it is larger than the sum of its proper divisors (291783749).

8461727851 is a wasteful number, since it uses less digits than its factorization.

8461727851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291783748.

The product of its digits is 752640, while the sum is 49.

The square root of 8461727851 is about 91987.6505352757. The cubic root of 8461727851 is about 2037.7599282777.

The spelling of 8461727851 in words is "eight billion, four hundred sixty-one million, seven hundred twenty-seven thousand, eight hundred fifty-one".