11544405142609 has 2 divisors, whose sum is σ = 11544405142610. Its totient is φ = 11544405142608.

The previous prime is 11544405142513. The next prime is 11544405142631. The reversal of 11544405142609 is 90624150444511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9951501160000 + 1592903982609 = 3154600^2 + 1262103^2 .

It is a cyclic number.

It is not a de Polignac number, because 11544405142609 - 2²¹ = 11544403045457 is a prime.

It is not a weakly prime, because it can be changed into another prime (11544405142639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5772202571304 + 5772202571305.

It is an arithmetic number, because the mean of its divisors is an integer number (5772202571305).

Almost surely, 2^{11544405142609} is an apocalyptic number.

It is an amenable number.

11544405142609 is a deficient number, since it is larger than the sum of its proper divisors (1).

11544405142609 is an equidigital number, since it uses as much as digits as its factorization.

11544405142609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 691200, while the sum is 46.

The spelling of 11544405142609 in words is "eleven trillion, five hundred forty-four billion, four hundred five million, one hundred forty-two thousand, six hundred nine".