71502386089 has 2 divisors, whose sum is σ = 71502386090. Its totient is φ = 71502386088.

The previous prime is 71502386027. The next prime is 71502386119. The reversal of 71502386089 is 98068320517.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37053170064 + 34449216025 = 192492^2 + 185605^2 .

It is a cyclic number.

It is not a de Polignac number, because 71502386089 - 2⁷ = 71502385961 is a prime.

It is a super-2 number, since 2×71502386089² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (71502306089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35751193044 + 35751193045.

It is an arithmetic number, because the mean of its divisors is an integer number (35751193045).

Almost surely, 2^71502386089 is an apocalyptic number.

It is an amenable number.

71502386089 is a deficient number, since it is larger than the sum of its proper divisors (1).

71502386089 is an equidigital number, since it uses as much as digits as its factorization.

71502386089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 725760, while the sum is 49.

The spelling of 71502386089 in words is "seventy-one billion, five hundred two million, three hundred eighty-six thousand, eighty-nine".