79893803441 has 2 divisors, whose sum is σ = 79893803442. Its totient is φ = 79893803440.

The previous prime is 79893803419. The next prime is 79893803443. The reversal of 79893803441 is 14430839897.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74605459600 + 5288343841 = 273140^2 + 72721^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79893803441 is a prime.

It is a Sophie Germain prime.

Together with 79893803443, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (79893803443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39946901720 + 39946901721.

It is an arithmetic number, because the mean of its divisors is an integer number (39946901721).

Almost surely, 2^79893803441 is an apocalyptic number.

It is an amenable number.

79893803441 is a deficient number, since it is larger than the sum of its proper divisors (1).

79893803441 is an equidigital number, since it uses as much as digits as its factorization.

79893803441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5225472, while the sum is 56.

The spelling of 79893803441 in words is "seventy-nine billion, eight hundred ninety-three million, eight hundred three thousand, four hundred forty-one".