71678795099 has 2 divisors, whose sum is σ = 71678795100. Its totient is φ = 71678795098.

The previous prime is 71678795093. The next prime is 71678795137. The reversal of 71678795099 is 99059787617.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 71678795099 - 2¹² = 71678791003 is a prime.

It is not a weakly prime, because it can be changed into another prime (71678795093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35839397549 + 35839397550.

It is an arithmetic number, because the mean of its divisors is an integer number (35839397550).

Almost surely, 2^71678795099 is an apocalyptic number.

71678795099 is a deficient number, since it is larger than the sum of its proper divisors (1).

71678795099 is an equidigital number, since it uses as much as digits as its factorization.

71678795099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60011280, while the sum is 68.

The spelling of 71678795099 in words is "seventy-one billion, six hundred seventy-eight million, seven hundred ninety-five thousand, ninety-nine".