191385829013 has 2 divisors, whose sum is σ = 191385829014. Its totient is φ = 191385829012.

The previous prime is 191385829007. The next prime is 191385829073. The reversal of 191385829013 is 310928583191.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 191149960849 + 235868164 = 437207^2 + 15358^2 .

It is a cyclic number.

It is not a de Polignac number, because 191385829013 - 2³² = 187090861717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (191385829003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95692914506 + 95692914507.

It is an arithmetic number, because the mean of its divisors is an integer number (95692914507).

Almost surely, 2^191385829013 is an apocalyptic number.

It is an amenable number.

191385829013 is a deficient number, since it is larger than the sum of its proper divisors (1).

191385829013 is an equidigital number, since it uses as much as digits as its factorization.

191385829013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 466560, while the sum is 50.

The spelling of 191385829013 in words is "one hundred ninety-one billion, three hundred eighty-five million, eight hundred twenty-nine thousand, thirteen".