71168429377 has 2 divisors, whose sum is σ = 71168429378. Its totient is φ = 71168429376.

The previous prime is 71168429303. The next prime is 71168429393. The reversal of 71168429377 is 77392486117.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70777813681 + 390615696 = 266041^2 + 19764^2 .

It is a cyclic number.

It is not a de Polignac number, because 71168429377 - 2¹⁵ = 71168396609 is a prime.

It is not a weakly prime, because it can be changed into another prime (71168429177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35584214688 + 35584214689.

It is an arithmetic number, because the mean of its divisors is an integer number (35584214689).

Almost surely, 2^71168429377 is an apocalyptic number.

It is an amenable number.

71168429377 is a deficient number, since it is larger than the sum of its proper divisors (1).

71168429377 is an equidigital number, since it uses as much as digits as its factorization.

71168429377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3556224, while the sum is 55.

The spelling of 71168429377 in words is "seventy-one billion, one hundred sixty-eight million, four hundred twenty-nine thousand, three hundred seventy-seven".