11700077435821 has 2 divisors, whose sum is σ = 11700077435822. Its totient is φ = 11700077435820.

The previous prime is 11700077435699. The next prime is 11700077435831. The reversal of 11700077435821 is 12853477000711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8962922266596 + 2737155169225 = 2993814^2 + 1654435^2 .

It is a cyclic number.

It is not a de Polignac number, because 11700077435821 - 2¹³ = 11700077427629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11700077435831) 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, 5850038717910 + 5850038717911.

It is an arithmetic number, because the mean of its divisors is an integer number (5850038717911).

Almost surely, 2^{11700077435821} is an apocalyptic number.

It is an amenable number.

11700077435821 is a deficient number, since it is larger than the sum of its proper divisors (1).

11700077435821 is an equidigital number, since it uses as much as digits as its factorization.

11700077435821 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 329280, while the sum is 46.

The spelling of 11700077435821 in words is "eleven trillion, seven hundred billion, seventy-seven million, four hundred thirty-five thousand, eight hundred twenty-one".