2193491073079 has 2 divisors, whose sum is σ = 2193491073080. Its totient is φ = 2193491073078.

The previous prime is 2193491072933. The next prime is 2193491073121. The reversal of 2193491073079 is 9703701943912.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2193491073079 - 2⁹ = 2193491072567 is a prime.

It is a super-2 number, since 2×2193491073079² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2193491073479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1096745536539 + 1096745536540.

It is an arithmetic number, because the mean of its divisors is an integer number (1096745536540).

Almost surely, 2^{2193491073079} is an apocalyptic number.

2193491073079 is a deficient number, since it is larger than the sum of its proper divisors (1).

2193491073079 is an equidigital number, since it uses as much as digits as its factorization.

2193491073079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2571912, while the sum is 55.

The spelling of 2193491073079 in words is "two trillion, one hundred ninety-three billion, four hundred ninety-one million, seventy-three thousand, seventy-nine".