6548378741 has 2 divisors, whose sum is σ = 6548378742. Its totient is φ = 6548378740.

The previous prime is 6548378701. The next prime is 6548378773. The reversal of 6548378741 is 1478738456.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6519916516 + 28462225 = 80746^2 + 5335^2 .

It is a cyclic number.

It is not a de Polignac number, because 6548378741 - 2⁶ = 6548378677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6548378701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3274189370 + 3274189371.

It is an arithmetic number, because the mean of its divisors is an integer number (3274189371).

Almost surely, 2^6548378741 is an apocalyptic number.

It is an amenable number.

6548378741 is a deficient number, since it is larger than the sum of its proper divisors (1).

6548378741 is an equidigital number, since it uses as much as digits as its factorization.

6548378741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4515840, while the sum is 53.

The square root of 6548378741 is about 80922.0534897626. The cubic root of 6548378741 is about 1870.8742460060.

The spelling of 6548378741 in words is "six billion, five hundred forty-eight million, three hundred seventy-eight thousand, seven hundred forty-one".