71498005049 has 2 divisors, whose sum is σ = 71498005050. Its totient is φ = 71498005048.

The previous prime is 71498005013. The next prime is 71498005063. The reversal of 71498005049 is 94050089417.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46609787449 + 24888217600 = 215893^2 + 157760^2 .

It is a cyclic number.

It is not a de Polignac number, because 71498005049 - 2⁸ = 71498004793 is a prime.

It is a super-2 number, since 2×71498005049² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 71498004994 and 71498005012.

It is not a weakly prime, because it can be changed into another prime (71498005069) 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, 35749002524 + 35749002525.

It is an arithmetic number, because the mean of its divisors is an integer number (35749002525).

Almost surely, 2^71498005049 is an apocalyptic number.

It is an amenable number.

71498005049 is a deficient number, since it is larger than the sum of its proper divisors (1).

71498005049 is an equidigital number, since it uses as much as digits as its factorization.

71498005049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 362880, while the sum is 47.

The spelling of 71498005049 in words is "seventy-one billion, four hundred ninety-eight million, five thousand, forty-nine".