54821643278 has 8 divisors (see below), whose sum is σ = 82365744672. Its totient is φ = 27366395056.

The previous prime is 54821643269. The next prime is 54821643347. The reversal of 54821643278 is 87234612845.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22211750 + ... + 22214217.

It is an arithmetic number, because the mean of its divisors is an integer number (10295718084).

Almost surely, 2^54821643278 is an apocalyptic number.

54821643278 is a deficient number, since it is larger than the sum of its proper divisors (27544101394).

54821643278 is a wasteful number, since it uses less digits than its factorization.

54821643278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44426586.

The product of its digits is 2580480, while the sum is 50.

The spelling of 54821643278 in words is "fifty-four billion, eight hundred twenty-one million, six hundred forty-three thousand, two hundred seventy-eight".