71349318401 has 2 divisors, whose sum is σ = 71349318402. Its totient is φ = 71349318400.

The previous prime is 71349318353. The next prime is 71349318413. The reversal of 71349318401 is 10481394317.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52778170225 + 18571148176 = 229735^2 + 136276^2 .

It is a cyclic number.

It is not a de Polignac number, because 71349318401 - 2³⁰ = 70275576577 is a prime.

It is not a weakly prime, because it can be changed into another prime (71349318421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35674659200 + 35674659201.

It is an arithmetic number, because the mean of its divisors is an integer number (35674659201).

Almost surely, 2^71349318401 is an apocalyptic number.

It is an amenable number.

71349318401 is a deficient number, since it is larger than the sum of its proper divisors (1).

71349318401 is an equidigital number, since it uses as much as digits as its factorization.

71349318401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 41.

The spelling of 71349318401 in words is "seventy-one billion, three hundred forty-nine million, three hundred eighteen thousand, four hundred one".