142463391869 has 2 divisors, whose sum is σ = 142463391870. Its totient is φ = 142463391868.

The previous prime is 142463391839. The next prime is 142463391871. The reversal of 142463391869 is 968193364241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 132669320644 + 9794071225 = 364238^2 + 98965^2 .

It is an emirp because it is prime and its reverse (968193364241) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142463391869 is a prime.

It is a super-2 number, since 2×142463391869² (a number of 23 digits) contains 22 as substring.

Together with 142463391871, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142463391809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71231695934 + 71231695935.

It is an arithmetic number, because the mean of its divisors is an integer number (71231695935).

Almost surely, 2^142463391869 is an apocalyptic number.

It is an amenable number.

142463391869 is a deficient number, since it is larger than the sum of its proper divisors (1).

142463391869 is an equidigital number, since it uses as much as digits as its factorization.

142463391869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6718464, while the sum is 56.

The spelling of 142463391869 in words is "one hundred forty-two billion, four hundred sixty-three million, three hundred ninety-one thousand, eight hundred sixty-nine".