8318616461 has 4 divisors (see below), whose sum is σ = 8756438400. Its totient is φ = 7880794524.

The previous prime is 8318616451. The next prime is 8318616463. The reversal of 8318616461 is 1646168138.

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 a de Polignac number, because none of the positive numbers 2^k-8318616461 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 (8318616463) 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, 218910941 + ... + 218910978.

It is an arithmetic number, because the mean of its divisors is an integer number (2189109600).

Almost surely, 2^8318616461 is an apocalyptic number.

It is an amenable number.

8318616461 is a deficient number, since it is larger than the sum of its proper divisors (437821939).

8318616461 is a wasteful number, since it uses less digits than its factorization.

8318616461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437821938.

The product of its digits is 165888, while the sum is 44.

The square root of 8318616461 is about 91206.4496677729. The cubic root of 8318616461 is about 2026.2064820590.

The spelling of 8318616461 in words is "eight billion, three hundred eighteen million, six hundred sixteen thousand, four hundred sixty-one".