54942399709 has 12 divisors (see below), whose sum is σ = 55655919936. Its totient is φ = 54237912392.

The previous prime is 54942399679. The next prime is 54942399719. The reversal of 54942399709 is 90799324945.

It is not a de Polignac number, because 54942399709 - 2¹⁹ = 54941875421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54942399719) 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, 12308412 + ... + 12312874.

It is an arithmetic number, because the mean of its divisors is an integer number (4637993328).

Almost surely, 2^54942399709 is an apocalyptic number.

It is an amenable number.

54942399709 is a deficient number, since it is larger than the sum of its proper divisors (713520227).

54942399709 is an equidigital number, since it uses as much as digits as its factorization.

54942399709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6416 (or 6333 counting only the distinct ones).

The product of its (nonzero) digits is 22044960, while the sum is 61.

The spelling of 54942399709 in words is "fifty-four billion, nine hundred forty-two million, three hundred ninety-nine thousand, seven hundred nine".