54649216819 has 8 divisors (see below), whose sum is σ = 54875974608. Its totient is φ = 54422568960.

The previous prime is 54649216813. The next prime is 54649216823. The reversal of 54649216819 is 91861294645.

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

It is a cyclic number.

It is not a de Polignac number, because 54649216819 - 2⁷ = 54649216691 is a prime.

It is a super-2 number, since 2×54649216819² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54649216819.

It is not an unprimeable number, because it can be changed into a prime (54649216813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1056979 + ... + 1107475.

It is an arithmetic number, because the mean of its divisors is an integer number (6859496826).

Almost surely, 2^54649216819 is an apocalyptic number.

54649216819 is a deficient number, since it is larger than the sum of its proper divisors (226757789).

54649216819 is a wasteful number, since it uses less digits than its factorization.

54649216819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54965.

The product of its digits is 3732480, while the sum is 55.

The spelling of 54649216819 in words is "fifty-four billion, six hundred forty-nine million, two hundred sixteen thousand, eight hundred nineteen".