71376852517 has 2 divisors, whose sum is σ = 71376852518. Its totient is φ = 71376852516.

The previous prime is 71376852497. The next prime is 71376852527. The reversal of 71376852517 is 71525867317.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49840116001 + 21536736516 = 223249^2 + 146754^2 .

It is an emirp because it is prime and its reverse (71525867317) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71376852517 - 2¹¹ = 71376850469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71376852527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35688426258 + 35688426259.

It is an arithmetic number, because the mean of its divisors is an integer number (35688426259).

Almost surely, 2^71376852517 is an apocalyptic number.

It is an amenable number.

71376852517 is a deficient number, since it is larger than the sum of its proper divisors (1).

71376852517 is an equidigital number, since it uses as much as digits as its factorization.

71376852517 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2469600, while the sum is 52.

The spelling of 71376852517 in words is "seventy-one billion, three hundred seventy-six million, eight hundred fifty-two thousand, five hundred seventeen".