191036952401 has 2 divisors, whose sum is σ = 191036952402. Its totient is φ = 191036952400.

The previous prime is 191036952397. The next prime is 191036952443. The reversal of 191036952401 is 104259630191.

191036952401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 121142283025 + 69894669376 = 348055^2 + 264376^2 .

It is a cyclic number.

It is not a de Polignac number, because 191036952401 - 2² = 191036952397 is a prime.

It is not a weakly prime, because it can be changed into another prime (191036952101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95518476200 + 95518476201.

It is an arithmetic number, because the mean of its divisors is an integer number (95518476201).

Almost surely, 2^191036952401 is an apocalyptic number.

It is an amenable number.

191036952401 is a deficient number, since it is larger than the sum of its proper divisors (1).

191036952401 is an equidigital number, since it uses as much as digits as its factorization.

191036952401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 41.

The spelling of 191036952401 in words is "one hundred ninety-one billion, thirty-six million, nine hundred fifty-two thousand, four hundred one".