544136857643 has 4 divisors (see below), whose sum is σ = 544148509320. Its totient is φ = 544125205968.

The previous prime is 544136857597. The next prime is 544136857711. The reversal of 544136857643 is 346758631445.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 346758631445 = 5 ⋅69351726289.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-544136857643 is a prime.

It is a super-3 number, since 3×544136857643³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (544136857843) 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 in 3 ways as a sum of consecutive naturals, for example, 5755505 + ... + 5849282.

It is an arithmetic number, because the mean of its divisors is an integer number (136037127330).

Almost surely, 2^544136857643 is an apocalyptic number.

544136857643 is a deficient number, since it is larger than the sum of its proper divisors (11651677).

544136857643 is a wasteful number, since it uses less digits than its factorization.

544136857643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11651676.

The product of its digits is 29030400, while the sum is 56.

The spelling of 544136857643 in words is "five hundred forty-four billion, one hundred thirty-six million, eight hundred fifty-seven thousand, six hundred forty-three".