2079703997309 has 2 divisors, whose sum is σ = 2079703997310. Its totient is φ = 2079703997308.

The previous prime is 2079703997249. The next prime is 2079703997311. The reversal of 2079703997309 is 9037993079702.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1994317313209 + 85386684100 = 1412203^2 + 292210^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2079703997309 is a prime.

Together with 2079703997311, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2079703967309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1039851998654 + 1039851998655.

It is an arithmetic number, because the mean of its divisors is an integer number (1039851998655).

Almost surely, 2^{2079703997309} is an apocalyptic number.

It is an amenable number.

2079703997309 is a deficient number, since it is larger than the sum of its proper divisors (1).

2079703997309 is an equidigital number, since it uses as much as digits as its factorization.

2079703997309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40507614, while the sum is 65.

The spelling of 2079703997309 in words is "two trillion, seventy-nine billion, seven hundred three million, nine hundred ninety-seven thousand, three hundred nine".