1912967723 has 2 divisors, whose sum is σ = 1912967724. Its totient is φ = 1912967722.

The previous prime is 1912967689. The next prime is 1912967761. The reversal of 1912967723 is 3277692191.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1912967723 - 2²⁰ = 1911919147 is a prime.

It is not a weakly prime, because it can be changed into another prime (1912967773) 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, 956483861 + 956483862.

It is an arithmetic number, because the mean of its divisors is an integer number (956483862).

Almost surely, 2^1912967723 is an apocalyptic number.

1912967723 is a deficient number, since it is larger than the sum of its proper divisors (1).

1912967723 is an equidigital number, since it uses as much as digits as its factorization.

1912967723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 285768, while the sum is 47.

The square root of 1912967723 is about 43737.4864732760. The cubic root of 1912967723 is about 1241.3737210285.

The spelling of 1912967723 in words is "one billion, nine hundred twelve million, nine hundred sixty-seven thousand, seven hundred twenty-three".