71141783761 has 2 divisors, whose sum is σ = 71141783762. Its totient is φ = 71141783760.

The previous prime is 71141783729. The next prime is 71141783767. The reversal of 71141783761 is 16738714117.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70044915600 + 1096868161 = 264660^2 + 33119^2 .

It is a cyclic number.

It is not a de Polignac number, because 71141783761 - 2⁵ = 71141783729 is a prime.

It is a super-2 number, since 2×71141783761² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (71141783767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35570891880 + 35570891881.

It is an arithmetic number, because the mean of its divisors is an integer number (35570891881).

Almost surely, 2^71141783761 is an apocalyptic number.

It is an amenable number.

71141783761 is a deficient number, since it is larger than the sum of its proper divisors (1).

71141783761 is an equidigital number, since it uses as much as digits as its factorization.

71141783761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 197568, while the sum is 46.

The spelling of 71141783761 in words is "seventy-one billion, one hundred forty-one million, seven hundred eighty-three thousand, seven hundred sixty-one".