1010206925909 has 2 divisors, whose sum is σ = 1010206925910. Its totient is φ = 1010206925908.

The previous prime is 1010206925879. The next prime is 1010206925947. The reversal of 1010206925909 is 9095296020101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1001980980100 + 8225945809 = 1000990^2 + 90697^2 .

It is a cyclic number.

It is not a de Polignac number, because 1010206925909 - 2²⁸ = 1009938490453 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1010206925909.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1010206925809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505103462954 + 505103462955.

It is an arithmetic number, because the mean of its divisors is an integer number (505103462955).

Almost surely, 2^{1010206925909} is an apocalyptic number.

It is an amenable number.

1010206925909 is a deficient number, since it is larger than the sum of its proper divisors (1).

1010206925909 is an equidigital number, since it uses as much as digits as its factorization.

1010206925909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 87480, while the sum is 44.

The spelling of 1010206925909 in words is "one trillion, ten billion, two hundred six million, nine hundred twenty-five thousand, nine hundred nine".