71373041749 has 2 divisors, whose sum is σ = 71373041750. Its totient is φ = 71373041748.

The previous prime is 71373041737. The next prime is 71373041843. The reversal of 71373041749 is 94714037317.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39182223025 + 32190818724 = 197945^2 + 179418^2 .

It is a cyclic number.

It is not a de Polignac number, because 71373041749 - 2³³ = 62783107157 is a prime.

It is a super-2 number, since 2×71373041749² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 71373041699 and 71373041708.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71373042749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35686520874 + 35686520875.

It is an arithmetic number, because the mean of its divisors is an integer number (35686520875).

Almost surely, 2^71373041749 is an apocalyptic number.

It is an amenable number.

71373041749 is a deficient number, since it is larger than the sum of its proper divisors (1).

71373041749 is an equidigital number, since it uses as much as digits as its factorization.

71373041749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 444528, while the sum is 46.

The spelling of 71373041749 in words is "seventy-one billion, three hundred seventy-three million, forty-one thousand, seven hundred forty-nine".