6542041652 has 6 divisors (see below), whose sum is σ = 11448572898. Its totient is φ = 3271020824.

The previous prime is 6542041621. The next prime is 6542041699. The reversal of 6542041652 is 2561402456.

It can be written as a sum of positive squares in only one way, i.e., 5918840356 + 623201296 = 76934^2 + 24964^2 .

It is a congruent number.

It is an unprimeable number.

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, 817755203 + ... + 817755210.

It is an arithmetic number, because the mean of its divisors is an integer number (1908095483).

Almost surely, 2^6542041652 is an apocalyptic number.

It is an amenable number.

6542041652 is a deficient number, since it is larger than the sum of its proper divisors (4906531246).

6542041652 is a wasteful number, since it uses less digits than its factorization.

6542041652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1635510417 (or 1635510415 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

The square root of 6542041652 is about 80882.8884993606. Note that the first 3 decimals coincide. The cubic root of 6542041652 is about 1870.2705483284.

The spelling of 6542041652 in words is "six billion, five hundred forty-two million, forty-one thousand, six hundred fifty-two".