54909666049 has 8 divisors (see below), whose sum is σ = 64089093888. Its totient is φ = 46064035680.

The previous prime is 54909666047. The next prime is 54909666079. The reversal of 54909666049 is 94066690945.

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 54909666049 - 2¹ = 54909666047 is a prime.

It is a super-2 number, since 2×54909666049² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54909665984 and 54909666002.

It is not an unprimeable number, because it can be changed into a prime (54909666041) 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, 83449012 + ... + 83449669.

It is an arithmetic number, because the mean of its divisors is an integer number (8011136736).

Almost surely, 2^54909666049 is an apocalyptic number.

It is an amenable number.

54909666049 is a deficient number, since it is larger than the sum of its proper divisors (9179427839).

54909666049 is a wasteful number, since it uses less digits than its factorization.

54909666049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166898735.

The product of its (nonzero) digits is 12597120, while the sum is 58.

The spelling of 54909666049 in words is "fifty-four billion, nine hundred nine million, six hundred sixty-six thousand, forty-nine".