2651273819 has 2 divisors, whose sum is σ = 2651273820. Its totient is φ = 2651273818.

The previous prime is 2651273809. The next prime is 2651273893. The reversal of 2651273819 is 9183721562.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2651273819 - 2⁴ = 2651273803 is a prime.

It is a super-2 number, since 2×2651273819² = 14058505726629689522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2651273819.

It is not a weakly prime, because it can be changed into another prime (2651273809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1325636909 + 1325636910.

It is an arithmetic number, because the mean of its divisors is an integer number (1325636910).

Almost surely, 2^2651273819 is an apocalyptic number.

2651273819 is a deficient number, since it is larger than the sum of its proper divisors (1).

2651273819 is an equidigital number, since it uses as much as digits as its factorization.

2651273819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 44.

The square root of 2651273819 is about 51490.5216423372. The cubic root of 2651273819 is about 1384.0491971538.

The spelling of 2651273819 in words is "two billion, six hundred fifty-one million, two hundred seventy-three thousand, eight hundred nineteen".