10265400209 has 2 divisors, whose sum is σ = 10265400210. Its totient is φ = 10265400208.

The previous prime is 10265400203. The next prime is 10265400239. The reversal of 10265400209 is 90200456201.

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., 6653991184 + 3611409025 = 81572^2 + 60095^2 .

It is an emirp because it is prime and its reverse (90200456201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10265400209 - 2²⁸ = 9996964753 is a prime.

It is a super-3 number, since 3×10265400209³ (a number of 31 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (10265400203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5132700104 + 5132700105.

It is an arithmetic number, because the mean of its divisors is an integer number (5132700105).

Almost surely, 2^10265400209 is an apocalyptic number.

It is an amenable number.

10265400209 is a deficient number, since it is larger than the sum of its proper divisors (1).

10265400209 is an equidigital number, since it uses as much as digits as its factorization.

10265400209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 29.

The spelling of 10265400209 in words is "ten billion, two hundred sixty-five million, four hundred thousand, two hundred nine".