11901359535997 has 2 divisors, whose sum is σ = 11901359535998. Its totient is φ = 11901359535996.

The previous prime is 11901359535859. The next prime is 11901359536039. The reversal of 11901359535997 is 79953595310911.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11393419671396 + 507939864601 = 3375414^2 + 712699^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11901359535997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11901359535397) 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, 5950679767998 + 5950679767999.

It is an arithmetic number, because the mean of its divisors is an integer number (5950679767999).

Almost surely, 2^{11901359535997} is an apocalyptic number.

It is an amenable number.

11901359535997 is a deficient number, since it is larger than the sum of its proper divisors (1).

11901359535997 is an equidigital number, since it uses as much as digits as its factorization.

11901359535997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51667875, while the sum is 67.

The spelling of 11901359535997 in words is "eleven trillion, nine hundred one billion, three hundred fifty-nine million, five hundred thirty-five thousand, nine hundred ninety-seven".