54663279887 has 4 divisors (see below), whose sum is σ = 54671592696. Its totient is φ = 54654967080.

The previous prime is 54663279877. The next prime is 54663279947. The reversal of 54663279887 is 78897236645.

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

It is a cyclic number.

It is not a de Polignac number, because 54663279887 - 2⁶ = 54663279823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54663279857) 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, 4146533 + ... + 4159694.

It is an arithmetic number, because the mean of its divisors is an integer number (13667898174).

Almost surely, 2^54663279887 is an apocalyptic number.

54663279887 is a deficient number, since it is larger than the sum of its proper divisors (8312809).

54663279887 is an equidigital number, since it uses as much as digits as its factorization.

54663279887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8312808.

The product of its digits is 121927680, while the sum is 65.

The spelling of 54663279887 in words is "fifty-four billion, six hundred sixty-three million, two hundred seventy-nine thousand, eight hundred eighty-seven".