11542152409 has 2 divisors, whose sum is σ = 11542152410. Its totient is φ = 11542152408.

The previous prime is 11542152403. The next prime is 11542152439. The reversal of 11542152409 is 90425124511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9801594009 + 1740558400 = 99003^2 + 41720^2 .

It is a cyclic number.

It is not a de Polignac number, because 11542152409 - 2⁹ = 11542151897 is a prime.

It is not a weakly prime, because it can be changed into another prime (11542152403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5771076204 + 5771076205.

It is an arithmetic number, because the mean of its divisors is an integer number (5771076205).

Almost surely, 2^11542152409 is an apocalyptic number.

It is an amenable number.

11542152409 is a deficient number, since it is larger than the sum of its proper divisors (1).

11542152409 is an equidigital number, since it uses as much as digits as its factorization.

11542152409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14400, while the sum is 34.

The spelling of 11542152409 in words is "eleven billion, five hundred forty-two million, one hundred fifty-two thousand, four hundred nine".