8736180461 has 2 divisors, whose sum is σ = 8736180462. Its totient is φ = 8736180460.

The previous prime is 8736180419. The next prime is 8736180533. The reversal of 8736180461 is 1640816378.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4957004836 + 3779175625 = 70406^2 + 61475^2 .

It is a cyclic number.

It is not a de Polignac number, because 8736180461 - 2²² = 8731986157 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8736180361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4368090230 + 4368090231.

It is an arithmetic number, because the mean of its divisors is an integer number (4368090231).

Almost surely, 2^8736180461 is an apocalyptic number.

8736180461 is the 49961-st centered heptagonal number.

It is an amenable number.

8736180461 is a deficient number, since it is larger than the sum of its proper divisors (1).

8736180461 is an equidigital number, since it uses as much as digits as its factorization.

8736180461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 8736180461 is about 93467.5369366284. The cubic root of 8736180461 is about 2059.5572351742.

The spelling of 8736180461 in words is "eight billion, seven hundred thirty-six million, one hundred eighty thousand, four hundred sixty-one".