42773718919 has 2 divisors, whose sum is σ = 42773718920. Its totient is φ = 42773718918.

The previous prime is 42773718829. The next prime is 42773718961. The reversal of 42773718919 is 91981737724.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42773718919 - 2²⁵ = 42740164487 is a prime.

It is a super-2 number, since 2×42773718919² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42773718019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21386859459 + 21386859460.

It is an arithmetic number, because the mean of its divisors is an integer number (21386859460).

Almost surely, 2^42773718919 is an apocalyptic number.

42773718919 is a deficient number, since it is larger than the sum of its proper divisors (1).

42773718919 is an equidigital number, since it uses as much as digits as its factorization.

42773718919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5334336, while the sum is 58.

The spelling of 42773718919 in words is "forty-two billion, seven hundred seventy-three million, seven hundred eighteen thousand, nine hundred nineteen".