54398489345 has 4 divisors (see below), whose sum is σ = 65278187220. Its totient is φ = 43518791472.

The previous prime is 54398489339. The next prime is 54398489347.

54398489345 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 41147716801 + 13250772544 = 202849^2 + 115112^2 .

It is a cyclic number.

It is not a de Polignac number, because 54398489345 - 2²² = 54394295041 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (54398489347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5439848930 + ... + 5439848939.

It is an arithmetic number, because the mean of its divisors is an integer number (16319546805).

Almost surely, 2^54398489345 is an apocalyptic number.

It is an amenable number.

54398489345 is a deficient number, since it is larger than the sum of its proper divisors (10879697875).

54398489345 is a wasteful number, since it uses less digits than its factorization.

54398489345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10879697874.

The product of its digits is 74649600, while the sum is 62.

The spelling of 54398489345 in words is "fifty-four billion, three hundred ninety-eight million, four hundred eighty-nine thousand, three hundred forty-five".