8618036461 has 2 divisors, whose sum is σ = 8618036462. Its totient is φ = 8618036460.

The previous prime is 8618036447. The next prime is 8618036477. The reversal of 8618036461 is 1646308168.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5406660900 + 3211375561 = 73530^2 + 56669^2 .

It is a cyclic number.

It is not a de Polignac number, because 8618036461 - 2⁵ = 8618036429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8618036261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4309018230 + 4309018231.

It is an arithmetic number, because the mean of its divisors is an integer number (4309018231).

Almost surely, 2^8618036461 is an apocalyptic number.

It is an amenable number.

8618036461 is a deficient number, since it is larger than the sum of its proper divisors (1).

8618036461 is an equidigital number, since it uses as much as digits as its factorization.

8618036461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 8618036461 is about 92833.3801011253. The cubic root of 8618036461 is about 2050.2309048652.

The spelling of 8618036461 in words is "eight billion, six hundred eighteen million, thirty-six thousand, four hundred sixty-one".