71631155059 has 2 divisors, whose sum is σ = 71631155060. Its totient is φ = 71631155058.

The previous prime is 71631154993. The next prime is 71631155111. The reversal of 71631155059 is 95055113617.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71631155059 is a prime.

It is not a weakly prime, because it can be changed into another prime (71631155159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35815577529 + 35815577530.

It is an arithmetic number, because the mean of its divisors is an integer number (35815577530).

Almost surely, 2^71631155059 is an apocalyptic number.

71631155059 is a deficient number, since it is larger than the sum of its proper divisors (1).

71631155059 is an equidigital number, since it uses as much as digits as its factorization.

71631155059 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 141750, while the sum is 43.

The spelling of 71631155059 in words is "seventy-one billion, six hundred thirty-one million, one hundred fifty-five thousand, fifty-nine".