71683469387 has 2 divisors, whose sum is σ = 71683469388. Its totient is φ = 71683469386.

The previous prime is 71683469329. The next prime is 71683469437. The reversal of 71683469387 is 78396438617.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 71683469387 - 2⁸ = 71683469131 is a prime.

It is not a weakly prime, because it can be changed into another prime (71683465387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35841734693 + 35841734694.

It is an arithmetic number, because the mean of its divisors is an integer number (35841734694).

Almost surely, 2^71683469387 is an apocalyptic number.

71683469387 is a deficient number, since it is larger than the sum of its proper divisors (1).

71683469387 is an equidigital number, since it uses as much as digits as its factorization.

71683469387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36578304, while the sum is 62.

The spelling of 71683469387 in words is "seventy-one billion, six hundred eighty-three million, four hundred sixty-nine thousand, three hundred eighty-seven".