191929200013 has 2 divisors, whose sum is σ = 191929200014. Its totient is φ = 191929200012.

The previous prime is 191929199989. The next prime is 191929200077. The reversal of 191929200013 is 310002929191.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 152160065929 + 39769134084 = 390077^2 + 199422^2 .

It is a cyclic number.

It is not a de Polignac number, because 191929200013 - 2¹⁷ = 191929068941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (191929203013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95964600006 + 95964600007.

It is an arithmetic number, because the mean of its divisors is an integer number (95964600007).

Almost surely, 2^191929200013 is an apocalyptic number.

It is an amenable number.

191929200013 is a deficient number, since it is larger than the sum of its proper divisors (1).

191929200013 is an equidigital number, since it uses as much as digits as its factorization.

191929200013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8748, while the sum is 37.

The spelling of 191929200013 in words is "one hundred ninety-one billion, nine hundred twenty-nine million, two hundred thousand, thirteen".