10702679809 has 2 divisors, whose sum is σ = 10702679810. Its totient is φ = 10702679808.

The previous prime is 10702679789. The next prime is 10702679831. The reversal of 10702679809 is 90897620701.

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., 8663886400 + 2038793409 = 93080^2 + 45153^2 .

It is a cyclic number.

It is not a de Polignac number, because 10702679809 - 2¹⁹ = 10702155521 is a prime.

It is a super-2 number, since 2×10702679809² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10702679899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5351339904 + 5351339905.

It is an arithmetic number, because the mean of its divisors is an integer number (5351339905).

Almost surely, 2^10702679809 is an apocalyptic number.

It is an amenable number.

10702679809 is a deficient number, since it is larger than the sum of its proper divisors (1).

10702679809 is an equidigital number, since it uses as much as digits as its factorization.

10702679809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 381024, while the sum is 49.

The spelling of 10702679809 in words is "ten billion, seven hundred two million, six hundred seventy-nine thousand, eight hundred nine".