54444045689 has 8 divisors (see below), whose sum is σ = 59527580832. Its totient is φ = 49382856640.

The previous prime is 54444045661. The next prime is 54444045701. The reversal of 54444045689 is 98654044445.

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 54444045689 - 2³² = 50149078393 is a prime.

It is a super-2 number, since 2×54444045689² (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 54444045689.

It is not an unprimeable number, because it can be changed into a prime (54444045619) 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, 5581424 + ... + 5591169.

It is an arithmetic number, because the mean of its divisors is an integer number (7440947604).

Almost surely, 2^54444045689 is an apocalyptic number.

It is an amenable number.

54444045689 is a deficient number, since it is larger than the sum of its proper divisors (5083535143).

54444045689 is a wasteful number, since it uses less digits than its factorization.

54444045689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11173047.

The product of its (nonzero) digits is 11059200, while the sum is 53.

The spelling of 54444045689 in words is "fifty-four billion, four hundred forty-four million, forty-five thousand, six hundred eighty-nine".