2725643519969 has 2 divisors, whose sum is σ = 2725643519970. Its totient is φ = 2725643519968.

The previous prime is 2725643519947. The next prime is 2725643520029. The reversal of 2725643519969 is 9699153465272.

2725643519969 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1979052476944 + 746591043025 = 1406788^2 + 864055^2 .

It is a cyclic number.

It is not a de Polignac number, because 2725643519969 - 2²⁸ = 2725375084513 is a prime.

It is a super-2 number, since 2×2725643519969² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2725643519899 and 2725643519908.

It is not a weakly prime, because it can be changed into another prime (2725643516969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1362821759984 + 1362821759985.

It is an arithmetic number, because the mean of its divisors is an integer number (1362821759985).

Almost surely, 2^{2725643519969} is an apocalyptic number.

It is an amenable number.

2725643519969 is a deficient number, since it is larger than the sum of its proper divisors (1).

2725643519969 is an equidigital number, since it uses as much as digits as its factorization.

2725643519969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 220449600, while the sum is 68.

The spelling of 2725643519969 in words is "two trillion, seven hundred twenty-five billion, six hundred forty-three million, five hundred nineteen thousand, nine hundred sixty-nine".