11908873069 has 2 divisors, whose sum is σ = 11908873070. Its totient is φ = 11908873068.

The previous prime is 11908873061. The next prime is 11908873087. The reversal of 11908873069 is 96037880911.

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., 9974016900 + 1934856169 = 99870^2 + 43987^2 .

It is a cyclic number.

It is not a de Polignac number, because 11908873069 - 2³ = 11908873061 is a prime.

It is a super-2 number, since 2×11908873069² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11908873061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5954436534 + 5954436535.

It is an arithmetic number, because the mean of its divisors is an integer number (5954436535).

Almost surely, 2^11908873069 is an apocalyptic number.

It is an amenable number.

11908873069 is a deficient number, since it is larger than the sum of its proper divisors (1).

11908873069 is an equidigital number, since it uses as much as digits as its factorization.

11908873069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 653184, while the sum is 52.

The spelling of 11908873069 in words is "eleven billion, nine hundred eight million, eight hundred seventy-three thousand, sixty-nine".