82451104913 has 2 divisors, whose sum is σ = 82451104914. Its totient is φ = 82451104912.

The previous prime is 82451104907. The next prime is 82451104987. The reversal of 82451104913 is 31940115428.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77649723649 + 4801381264 = 278657^2 + 69292^2 .

It is a cyclic number.

It is not a de Polignac number, because 82451104913 - 2¹² = 82451100817 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (82451104993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41225552456 + 41225552457.

It is an arithmetic number, because the mean of its divisors is an integer number (41225552457).

Almost surely, 2^82451104913 is an apocalyptic number.

It is an amenable number.

82451104913 is a deficient number, since it is larger than the sum of its proper divisors (1).

82451104913 is an equidigital number, since it uses as much as digits as its factorization.

82451104913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 38.

The spelling of 82451104913 in words is "eighty-two billion, four hundred fifty-one million, one hundred four thousand, nine hundred thirteen".