11787409097 has 2 divisors, whose sum is σ = 11787409098. Its totient is φ = 11787409096.

The previous prime is 11787409079. The next prime is 11787409141. The reversal of 11787409097 is 79090478711.

It is a happy number.

Together with previous prime (11787409079) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7694096656 + 4093312441 = 87716^2 + 63979^2 .

It is a cyclic number.

It is not a de Polignac number, because 11787409097 - 2⁶ = 11787409033 is a prime.

It is a super-3 number, since 3×11787409097³ (a number of 31 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (11787403097) 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, 5893704548 + 5893704549.

It is an arithmetic number, because the mean of its divisors is an integer number (5893704549).

Almost surely, 2^11787409097 is an apocalyptic number.

It is an amenable number.

11787409097 is a deficient number, since it is larger than the sum of its proper divisors (1).

11787409097 is an equidigital number, since it uses as much as digits as its factorization.

11787409097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 889056, while the sum is 53.

The spelling of 11787409097 in words is "eleven billion, seven hundred eighty-seven million, four hundred nine thousand, ninety-seven".