142778310019 has 2 divisors, whose sum is σ = 142778310020. Its totient is φ = 142778310018.

The previous prime is 142778309983. The next prime is 142778310061. The reversal of 142778310019 is 910013877241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 142778310019 - 2¹⁵ = 142778277251 is a prime.

It is a super-2 number, since 2×142778310019² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (142778310089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71389155009 + 71389155010.

It is an arithmetic number, because the mean of its divisors is an integer number (71389155010).

Almost surely, 2^142778310019 is an apocalyptic number.

142778310019 is a deficient number, since it is larger than the sum of its proper divisors (1).

142778310019 is an equidigital number, since it uses as much as digits as its factorization.

142778310019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84672, while the sum is 43.

The spelling of 142778310019 in words is "one hundred forty-two billion, seven hundred seventy-eight million, three hundred ten thousand, nineteen".