10915005885809 has 2 divisors, whose sum is σ = 10915005885810. Its totient is φ = 10915005885808.

The previous prime is 10915005885779. The next prime is 10915005885821. The reversal of 10915005885809 is 90858850051901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10468719091600 + 446286794209 = 3235540^2 + 668047^2 .

It is a cyclic number.

It is not a de Polignac number, because 10915005885809 - 2²⁴ = 10914989108593 is a prime.

It is a super-2 number, since 2×10915005885809² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10915005785809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5457502942904 + 5457502942905.

It is an arithmetic number, because the mean of its divisors is an integer number (5457502942905).

Almost surely, 2^{10915005885809} is an apocalyptic number.

It is an amenable number.

10915005885809 is a deficient number, since it is larger than the sum of its proper divisors (1).

10915005885809 is an equidigital number, since it uses as much as digits as its factorization.

10915005885809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184000, while the sum is 59.

The spelling of 10915005885809 in words is "ten trillion, nine hundred fifteen billion, five million, eight hundred eighty-five thousand, eight hundred nine".