8709646461 has 4 divisors (see below), whose sum is σ = 11612861952. Its totient is φ = 5806430972.

The previous prime is 8709646433. The next prime is 8709646501. The reversal of 8709646461 is 1646469078.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8709646461 - 2¹⁹ = 8709122173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8709646061) 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, 1451607741 + ... + 1451607746.

It is an arithmetic number, because the mean of its divisors is an integer number (2903215488).

Almost surely, 2^8709646461 is an apocalyptic number.

It is an amenable number.

8709646461 is a deficient number, since it is larger than the sum of its proper divisors (2903215491).

8709646461 is a wasteful number, since it uses less digits than its factorization.

8709646461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2903215490.

The product of its (nonzero) digits is 1741824, while the sum is 51.

The square root of 8709646461 is about 93325.4866636119. The cubic root of 8709646461 is about 2057.4699876871.

The spelling of 8709646461 in words is "eight billion, seven hundred nine million, six hundred forty-six thousand, four hundred sixty-one".