6456536542 has 4 divisors (see below), whose sum is σ = 9684804816. Its totient is φ = 3228268270.

The previous prime is 6456536533. The next prime is 6456536543. The reversal of 6456536542 is 2456356546.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 6456536492 and 6456536501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6456536543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1614134134 + ... + 1614134137.

It is an arithmetic number, because the mean of its divisors is an integer number (2421201204).

Almost surely, 2^6456536542 is an apocalyptic number.

6456536542 is a deficient number, since it is larger than the sum of its proper divisors (3228268274).

6456536542 is a wasteful number, since it uses less digits than its factorization.

6456536542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3228268273.

The product of its digits is 2592000, while the sum is 46.

The square root of 6456536542 is about 80352.5764490474. The cubic root of 6456536542 is about 1862.0865840490.

The spelling of 6456536542 in words is "six billion, four hundred fifty-six million, five hundred thirty-six thousand, five hundred forty-two".