8742687601 has 2 divisors, whose sum is σ = 8742687602. Its totient is φ = 8742687600.

The previous prime is 8742687599. The next prime is 8742687643. The reversal of 8742687601 is 1067862478.

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., 4432896400 + 4309791201 = 66580^2 + 65649^2 .

It is a cyclic number.

It is not a de Polignac number, because 8742687601 - 2¹ = 8742687599 is a prime.

Together with 8742687599, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (8742687661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4371343800 + 4371343801.

It is an arithmetic number, because the mean of its divisors is an integer number (4371343801).

Almost surely, 2^8742687601 is an apocalyptic number.

It is an amenable number.

8742687601 is a deficient number, since it is larger than the sum of its proper divisors (1).

8742687601 is an equidigital number, since it uses as much as digits as its factorization.

8742687601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 903168, while the sum is 49.

The square root of 8742687601 is about 93502.3400830161. The cubic root of 8742687601 is about 2060.0684616861.

The spelling of 8742687601 in words is "eight billion, seven hundred forty-two million, six hundred eighty-seven thousand, six hundred one".