71440736659 has 2 divisors, whose sum is σ = 71440736660. Its totient is φ = 71440736658.

The previous prime is 71440736651. The next prime is 71440736663. The reversal of 71440736659 is 95663704417.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 71440736659 - 2³ = 71440736651 is a prime.

It is not a weakly prime, because it can be changed into another prime (71440736651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35720368329 + 35720368330.

It is an arithmetic number, because the mean of its divisors is an integer number (35720368330).

Almost surely, 2^71440736659 is an apocalyptic number.

71440736659 is a deficient number, since it is larger than the sum of its proper divisors (1).

71440736659 is an equidigital number, since it uses as much as digits as its factorization.

71440736659 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3810240, while the sum is 52.

The spelling of 71440736659 in words is "seventy-one billion, four hundred forty million, seven hundred thirty-six thousand, six hundred fifty-nine".