1912729699 has 2 divisors, whose sum is σ = 1912729700. Its totient is φ = 1912729698.

The previous prime is 1912729691. The next prime is 1912729733. The reversal of 1912729699 is 9969272191.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1912729699 - 2³ = 1912729691 is a prime.

It is not a weakly prime, because it can be changed into another prime (1912729691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 956364849 + 956364850.

It is an arithmetic number, because the mean of its divisors is an integer number (956364850).

Almost surely, 2^1912729699 is an apocalyptic number.

1912729699 is a deficient number, since it is larger than the sum of its proper divisors (1).

1912729699 is an equidigital number, since it uses as much as digits as its factorization.

1912729699 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1102248, while the sum is 55.

The square root of 1912729699 is about 43734.7653360573. The cubic root of 1912729699 is about 1241.3222322709.

The spelling of 1912729699 in words is "one billion, nine hundred twelve million, seven hundred twenty-nine thousand, six hundred ninety-nine".