544630989791 has 12 divisors (see below), whose sum is σ = 634403069712. Its totient is φ = 466198231968.

The previous prime is 544630989787. The next prime is 544630989823. The reversal of 544630989791 is 197989036445.

It is not a de Polignac number, because 544630989791 - 2² = 544630989787 is a prime.

It is a Smith number, since the sum of its digits (65) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (544630989491) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7443350 + ... + 7516163.

It is an arithmetic number, because the mean of its divisors is an integer number (52866922476).

Almost surely, 2^544630989791 is an apocalyptic number.

544630989791 is a deficient number, since it is larger than the sum of its proper divisors (89772079921).

544630989791 is a wasteful number, since it uses less digits than its factorization.

544630989791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14960270 (or 14960263 counting only the distinct ones).

The product of its (nonzero) digits is 58786560, while the sum is 65.

The spelling of 544630989791 in words is "five hundred forty-four billion, six hundred thirty million, nine hundred eighty-nine thousand, seven hundred ninety-one".