6451727620423 has 2 divisors, whose sum is σ = 6451727620424. Its totient is φ = 6451727620422.

The previous prime is 6451727620421. The next prime is 6451727620447. The reversal of 6451727620423 is 3240267271546.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6451727620423 - 2¹ = 6451727620421 is a prime.

Together with 6451727620421, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6451727620421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3225863810211 + 3225863810212.

It is an arithmetic number, because the mean of its divisors is an integer number (3225863810212).

Almost surely, 2^{6451727620423} is an apocalyptic number.

6451727620423 is a deficient number, since it is larger than the sum of its proper divisors (1).

6451727620423 is an equidigital number, since it uses as much as digits as its factorization.

6451727620423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3386880, while the sum is 49.

The spelling of 6451727620423 in words is "six trillion, four hundred fifty-one billion, seven hundred twenty-seven million, six hundred twenty thousand, four hundred twenty-three".