6542404937 has 2 divisors, whose sum is σ = 6542404938. Its totient is φ = 6542404936.

The previous prime is 6542404927. The next prime is 6542404991. The reversal of 6542404937 is 7394042456.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4548693136 + 1993711801 = 67444^2 + 44651^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6542404937 is a prime.

It is not a weakly prime, because it can be changed into another prime (6542404907) 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, 3271202468 + 3271202469.

It is an arithmetic number, because the mean of its divisors is an integer number (3271202469).

Almost surely, 2^6542404937 is an apocalyptic number.

It is an amenable number.

6542404937 is a deficient number, since it is larger than the sum of its proper divisors (1).

6542404937 is an equidigital number, since it uses as much as digits as its factorization.

6542404937 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 725760, while the sum is 44.

The square root of 6542404937 is about 80885.1342151325. The cubic root of 6542404937 is about 1870.3051669126.

The spelling of 6542404937 in words is "six billion, five hundred forty-two million, four hundred four thousand, nine hundred thirty-seven".