54487678445 has 4 divisors (see below), whose sum is σ = 65385214140. Its totient is φ = 43590142752.

The previous prime is 54487678439. The next prime is 54487678451.

It is a happy number.

54487678445 is nontrivially palindromic in base 10.

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

It is an interprime number because it is at equal distance from previous prime (54487678439) and next prime (54487678451).

It can be written as a sum of positive squares in 2 ways, for example, as 11444292484 + 43043385961 = 106978^2 + 207469^2 .

It is a cyclic number.

It is not a de Polignac number, because 54487678445 - 2¹⁰ = 54487677421 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5448767840 + ... + 5448767849.

It is an arithmetic number, because the mean of its divisors is an integer number (16346303535).

Almost surely, 2^54487678445 is an apocalyptic number.

It is an amenable number.

54487678445 is a deficient number, since it is larger than the sum of its proper divisors (10897535695).

54487678445 is a wasteful number, since it uses less digits than its factorization.

54487678445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10897535694.

The product of its digits is 120422400, while the sum is 62.

The spelling of 54487678445 in words is "fifty-four billion, four hundred eighty-seven million, six hundred seventy-eight thousand, four hundred forty-five".