71351079077 has 2 divisors, whose sum is σ = 71351079078. Its totient is φ = 71351079076.

The previous prime is 71351079001. The next prime is 71351079089. The reversal of 71351079077 is 77097015317.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62073729316 + 9277349761 = 249146^2 + 96319^2 .

It is a cyclic number.

It is not a de Polignac number, because 71351079077 - 2²⁶ = 71283970213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71351079277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35675539538 + 35675539539.

It is an arithmetic number, because the mean of its divisors is an integer number (35675539539).

Almost surely, 2^71351079077 is an apocalyptic number.

It is an amenable number.

71351079077 is a deficient number, since it is larger than the sum of its proper divisors (1).

71351079077 is an equidigital number, since it uses as much as digits as its factorization.

71351079077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324135, while the sum is 47.

The spelling of 71351079077 in words is "seventy-one billion, three hundred fifty-one million, seventy-nine thousand, seventy-seven".