8007686461 has 2 divisors, whose sum is σ = 8007686462. Its totient is φ = 8007686460.

The previous prime is 8007686447. The next prime is 8007686471. The reversal of 8007686461 is 1646867008.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7149548025 + 858138436 = 84555^2 + 29294^2 .

It is a cyclic number.

It is not a de Polignac number, because 8007686461 - 2¹⁹ = 8007162173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8007686411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4003843230 + 4003843231.

It is an arithmetic number, because the mean of its divisors is an integer number (4003843231).

Almost surely, 2^8007686461 is an apocalyptic number.

It is an amenable number.

8007686461 is a deficient number, since it is larger than the sum of its proper divisors (1).

8007686461 is an equidigital number, since it uses as much as digits as its factorization.

8007686461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 387072, while the sum is 46.

The square root of 8007686461 is about 89485.6774070577. The cubic root of 8007686461 is about 2000.6403333814.

The spelling of 8007686461 in words is "eight billion, seven million, six hundred eighty-six thousand, four hundred sixty-one".