73681683671 has 2 divisors, whose sum is σ = 73681683672. Its totient is φ = 73681683670.

The previous prime is 73681683653. The next prime is 73681683697. The reversal of 73681683671 is 17638618637.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73681683671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73681683571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36840841835 + 36840841836.

It is an arithmetic number, because the mean of its divisors is an integer number (36840841836).

Almost surely, 2^73681683671 is an apocalyptic number.

73681683671 is a deficient number, since it is larger than the sum of its proper divisors (1).

73681683671 is an equidigital number, since it uses as much as digits as its factorization.

73681683671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6096384, while the sum is 56.

The spelling of 73681683671 in words is "seventy-three billion, six hundred eighty-one million, six hundred eighty-three thousand, six hundred seventy-one".