2558721743 has 2 divisors, whose sum is σ = 2558721744. Its totient is φ = 2558721742.

The previous prime is 2558721719. The next prime is 2558721749. The reversal of 2558721743 is 3471278552.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2558721743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2558721694 and 2558721703.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2558721749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1279360871 + 1279360872.

It is an arithmetic number, because the mean of its divisors is an integer number (1279360872).

Almost surely, 2^2558721743 is an apocalyptic number.

2558721743 is a deficient number, since it is larger than the sum of its proper divisors (1).

2558721743 is an equidigital number, since it uses as much as digits as its factorization.

2558721743 is an evil number, because the sum of its binary digits is even.

The product of its digits is 470400, while the sum is 44.

The square root of 2558721743 is about 50583.8090993551. The cubic root of 2558721743 is about 1367.7530331094.

The spelling of 2558721743 in words is "two billion, five hundred fifty-eight million, seven hundred twenty-one thousand, seven hundred forty-three".