11727150236521 has 2 divisors, whose sum is σ = 11727150236522. Its totient is φ = 11727150236520.

The previous prime is 11727150236413. The next prime is 11727150236533. The reversal of 11727150236521 is 12563205172711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8020427905296 + 3706722331225 = 2832036^2 + 1925285^2 .

It is a cyclic number.

It is not a de Polignac number, because 11727150236521 - 2¹³ = 11727150228329 is a prime.

It is not a weakly prime, because it can be changed into another prime (11727150236821) 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, 5863575118260 + 5863575118261.

It is an arithmetic number, because the mean of its divisors is an integer number (5863575118261).

Almost surely, 2^{11727150236521} is an apocalyptic number.

It is an amenable number.

11727150236521 is a deficient number, since it is larger than the sum of its proper divisors (1).

11727150236521 is an equidigital number, since it uses as much as digits as its factorization.

11727150236521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 176400, while the sum is 43.

The spelling of 11727150236521 in words is "eleven trillion, seven hundred twenty-seven billion, one hundred fifty million, two hundred thirty-six thousand, five hundred twenty-one".