71696635427 has 2 divisors, whose sum is σ = 71696635428. Its totient is φ = 71696635426.

The previous prime is 71696635379. The next prime is 71696635433. The reversal of 71696635427 is 72453669617.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 71696635427 - 2²⁸ = 71428199971 is a prime.

It is not a weakly prime, because it can be changed into another prime (71696635327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35848317713 + 35848317714.

It is an arithmetic number, because the mean of its divisors is an integer number (35848317714).

Almost surely, 2^71696635427 is an apocalyptic number.

71696635427 is a deficient number, since it is larger than the sum of its proper divisors (1).

71696635427 is an equidigital number, since it uses as much as digits as its factorization.

71696635427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11430720, while the sum is 56.

The spelling of 71696635427 in words is "seventy-one billion, six hundred ninety-six million, six hundred thirty-five thousand, four hundred twenty-seven".