136933493491 has 2 divisors, whose sum is σ = 136933493492. Its totient is φ = 136933493490.

The previous prime is 136933493467. The next prime is 136933493537. The reversal of 136933493491 is 194394339631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 136933493491 - 2⁹ = 136933492979 is a prime.

It is not a weakly prime, because it can be changed into another prime (136933493461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68466746745 + 68466746746.

It is an arithmetic number, because the mean of its divisors is an integer number (68466746746).

Almost surely, 2^136933493491 is an apocalyptic number.

136933493491 is a deficient number, since it is larger than the sum of its proper divisors (1).

136933493491 is an equidigital number, since it uses as much as digits as its factorization.

136933493491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5668704, while the sum is 55.

The spelling of 136933493491 in words is "one hundred thirty-six billion, nine hundred thirty-three million, four hundred ninety-three thousand, four hundred ninety-one".