71498005013 has 2 divisors, whose sum is σ = 71498005014. Its totient is φ = 71498005012.

The previous prime is 71498004973. The next prime is 71498005049. The reversal of 71498005013 is 31050089417.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62097151249 + 9400853764 = 249193^2 + 96958^2 .

It is an emirp because it is prime and its reverse (31050089417) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71498005013 - 2⁸ = 71498004757 is a prime.

It is a super-2 number, since 2×71498005013² (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 (71498005063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35749002506 + 35749002507.

It is an arithmetic number, because the mean of its divisors is an integer number (35749002507).

Almost surely, 2^71498005013 is an apocalyptic number.

It is an amenable number.

71498005013 is a deficient number, since it is larger than the sum of its proper divisors (1).

71498005013 is an equidigital number, since it uses as much as digits as its factorization.

71498005013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 38.

The spelling of 71498005013 in words is "seventy-one billion, four hundred ninety-eight million, five thousand, thirteen".