10030686509 has 2 divisors, whose sum is σ = 10030686510. Its totient is φ = 10030686508.

The previous prime is 10030686503. The next prime is 10030686539. The reversal of 10030686509 is 90568603001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8531293225 + 1499393284 = 92365^2 + 38722^2 .

It is a cyclic number.

It is not a de Polignac number, because 10030686509 - 2¹⁶ = 10030620973 is a prime.

It is a super-2 number, since 2×10030686509² (a number of 21 digits) contains 22 as substring.

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 (10030686503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5015343254 + 5015343255.

It is an arithmetic number, because the mean of its divisors is an integer number (5015343255).

Almost surely, 2^10030686509 is an apocalyptic number.

It is an amenable number.

10030686509 is a deficient number, since it is larger than the sum of its proper divisors (1).

10030686509 is an equidigital number, since it uses as much as digits as its factorization.

10030686509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 38.

The spelling of 10030686509 in words is "ten billion, thirty million, six hundred eighty-six thousand, five hundred nine".