6542405117 has 2 divisors, whose sum is σ = 6542405118. Its totient is φ = 6542405116.

The previous prime is 6542405101. The next prime is 6542405141. The reversal of 6542405117 is 7115042456.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6060778201 + 481626916 = 77851^2 + 21946^2 .

It is a cyclic number.

It is not a de Polignac number, because 6542405117 - 2⁴ = 6542405101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6542405167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3271202558 + 3271202559.

It is an arithmetic number, because the mean of its divisors is an integer number (3271202559).

Almost surely, 2^6542405117 is an apocalyptic number.

It is an amenable number.

6542405117 is a deficient number, since it is larger than the sum of its proper divisors (1).

6542405117 is an equidigital number, since it uses as much as digits as its factorization.

6542405117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 6542405117 is about 80885.1353278215. The cubic root of 6542405117 is about 1870.3051840651.

The spelling of 6542405117 in words is "six billion, five hundred forty-two million, four hundred five thousand, one hundred seventeen".