2719097688449 has 4 divisors (see below), whose sum is σ = 2736416782164. Its totient is φ = 2701778594736.

The previous prime is 2719097688443. The next prime is 2719097688473. The reversal of 2719097688449 is 9448867909172.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 461050506049 + 2258047182400 = 679007^2 + 1502680^2 .

It is a cyclic number.

It is not a de Polignac number, because 2719097688449 - 2⁸ = 2719097688193 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2719097688443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8659546622 + ... + 8659546935.

It is an arithmetic number, because the mean of its divisors is an integer number (684104195541).

Almost surely, 2^{2719097688449} is an apocalyptic number.

It is an amenable number.

2719097688449 is a deficient number, since it is larger than the sum of its proper divisors (17319093715).

2719097688449 is a wasteful number, since it uses less digits than its factorization.

2719097688449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17319093714.

The product of its (nonzero) digits is 438939648, while the sum is 74.

The spelling of 2719097688449 in words is "two trillion, seven hundred nineteen billion, ninety-seven million, six hundred eighty-eight thousand, four hundred forty-nine".