71498903717 has 2 divisors, whose sum is σ = 71498903718. Its totient is φ = 71498903716.

The previous prime is 71498903687. The next prime is 71498903767. The reversal of 71498903717 is 71730989417.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68741498596 + 2757405121 = 262186^2 + 52511^2 .

It is a cyclic number.

It is not a de Polignac number, because 71498903717 - 2⁶ = 71498903653 is a prime.

It is a super-2 number, since 2×71498903717² (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 (71498903767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35749451858 + 35749451859.

It is an arithmetic number, because the mean of its divisors is an integer number (35749451859).

Almost surely, 2^71498903717 is an apocalyptic number.

It is an amenable number.

71498903717 is a deficient number, since it is larger than the sum of its proper divisors (1).

71498903717 is an equidigital number, since it uses as much as digits as its factorization.

71498903717 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2667168, while the sum is 56.

The spelling of 71498903717 in words is "seventy-one billion, four hundred ninety-eight million, nine hundred three thousand, seven hundred seventeen".