6543540051 has 8 divisors (see below), whose sum is σ = 8725778064. Its totient is φ = 4361831040.

The previous prime is 6543540049. The next prime is 6543540053. The reversal of 6543540051 is 1500453456.

It is an interprime number because it is at equal distance from previous prime (6543540049) and next prime (6543540053).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6543540051 - 2¹ = 6543540049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6543539994 and 6543540021.

It is not an unprimeable number, because it can be changed into a prime (6543540053) 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 in 7 ways as a sum of consecutive naturals, for example, 102426 + ... + 153551.

It is an arithmetic number, because the mean of its divisors is an integer number (1090722258).

Almost surely, 2^6543540051 is an apocalyptic number.

6543540051 is a deficient number, since it is larger than the sum of its proper divisors (2182238013).

6543540051 is a wasteful number, since it uses less digits than its factorization.

6543540051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264501.

The product of its (nonzero) digits is 36000, while the sum is 33.

The square root of 6543540051 is about 80892.1507378806. The cubic root of 6543540051 is about 1870.4133272823.

The spelling of 6543540051 in words is "six billion, five hundred forty-three million, five hundred forty thousand, fifty-one".