71886752473 has 2 divisors, whose sum is σ = 71886752474. Its totient is φ = 71886752472.

The previous prime is 71886752393. The next prime is 71886752503. The reversal of 71886752473 is 37425768817.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46133884944 + 25752867529 = 214788^2 + 160477^2 .

It is a cyclic number.

It is not a de Polignac number, because 71886752473 - 2²¹ = 71884655321 is a prime.

It is a super-2 number, since 2×71886752473² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (71886758473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35943376236 + 35943376237.

It is an arithmetic number, because the mean of its divisors is an integer number (35943376237).

Almost surely, 2^71886752473 is an apocalyptic number.

It is an amenable number.

71886752473 is a deficient number, since it is larger than the sum of its proper divisors (1).

71886752473 is an equidigital number, since it uses as much as digits as its factorization.

71886752473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15805440, while the sum is 58.

The spelling of 71886752473 in words is "seventy-one billion, eight hundred eighty-six million, seven hundred fifty-two thousand, four hundred seventy-three".