8436029393489 has 2 divisors, whose sum is σ = 8436029393490. Its totient is φ = 8436029393488.

The previous prime is 8436029393353. The next prime is 8436029393531. The reversal of 8436029393489 is 9843939206348.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6799536038464 + 1636493355025 = 2607592^2 + 1279255^2 .

It is a cyclic number.

It is not a de Polignac number, because 8436029393489 - 2¹⁶ = 8436029327953 is a prime.

It is not a weakly prime, because it can be changed into another prime (8436029693489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4218014696744 + 4218014696745.

It is an arithmetic number, because the mean of its divisors is an integer number (4218014696745).

Almost surely, 2^{8436029393489} is an apocalyptic number.

It is an amenable number.

8436029393489 is a deficient number, since it is larger than the sum of its proper divisors (1).

8436029393489 is an equidigital number, since it uses as much as digits as its factorization.

8436029393489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 241864704, while the sum is 68.

The spelling of 8436029393489 in words is "eight trillion, four hundred thirty-six billion, twenty-nine million, three hundred ninety-three thousand, four hundred eighty-nine".