104057610912649 has 2 divisors, whose sum is σ = 104057610912650. Its totient is φ = 104057610912648.

The previous prime is 104057610912643. The next prime is 104057610912667. The reversal of 104057610912649 is 946219016750401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64601084750400 + 39456526162249 = 8037480^2 + 6281443^2 .

It is an emirp because it is prime and its reverse (946219016750401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 104057610912649 - 2⁹ = 104057610912137 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 104057610912649.

It is not a weakly prime, because it can be changed into another prime (104057610912643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52028805456324 + 52028805456325.

It is an arithmetic number, because the mean of its divisors is an integer number (52028805456325).

Almost surely, 2^{104057610912649} is an apocalyptic number.

It is an amenable number.

104057610912649 is a deficient number, since it is larger than the sum of its proper divisors (1).

104057610912649 is an equidigital number, since it uses as much as digits as its factorization.

104057610912649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3265920, while the sum is 55.

The spelling of 104057610912649 in words is "one hundred four trillion, fifty-seven billion, six hundred ten million, nine hundred twelve thousand, six hundred forty-nine".