2102394004679 has 2 divisors, whose sum is σ = 2102394004680. Its totient is φ = 2102394004678.

The previous prime is 2102394004649. The next prime is 2102394004717. The reversal of 2102394004679 is 9764004932012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2102394004679 - 2¹² = 2102394000583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2102394004649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051197002339 + 1051197002340.

It is an arithmetic number, because the mean of its divisors is an integer number (1051197002340).

Almost surely, 2^{2102394004679} is an apocalyptic number.

2102394004679 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102394004679 is an equidigital number, since it uses as much as digits as its factorization.

2102394004679 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 653184, while the sum is 47.

The spelling of 2102394004679 in words is "two trillion, one hundred two billion, three hundred ninety-four million, four thousand, six hundred seventy-nine".