142888726469 has 2 divisors, whose sum is σ = 142888726470. Its totient is φ = 142888726468.

The previous prime is 142888726403. The next prime is 142888726511. The reversal of 142888726469 is 964627888241.

142888726469 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 136109344900 + 6779381569 = 368930^2 + 82337^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142888726469 is a prime.

It is a super-2 number, since 2×142888726469² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142888728469) 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, 71444363234 + 71444363235.

It is an arithmetic number, because the mean of its divisors is an integer number (71444363235).

Almost surely, 2^142888726469 is an apocalyptic number.

It is an amenable number.

142888726469 is a deficient number, since it is larger than the sum of its proper divisors (1).

142888726469 is an equidigital number, since it uses as much as digits as its factorization.

142888726469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 74317824, while the sum is 65.

The spelling of 142888726469 in words is "one hundred forty-two billion, eight hundred eighty-eight million, seven hundred twenty-six thousand, four hundred sixty-nine".