54064378561 has 8 divisors (see below), whose sum is σ = 54436726784. Its totient is φ = 53693254080.

The previous prime is 54064378553. The next prime is 54064378573. The reversal of 54064378561 is 16587346045.

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 54064378561 - 2³ = 54064378553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54064378961) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 217185 + ... + 394078.

It is an arithmetic number, because the mean of its divisors is an integer number (6804590848).

Almost surely, 2^54064378561 is an apocalyptic number.

It is an amenable number.

54064378561 is a deficient number, since it is larger than the sum of its proper divisors (372348223).

54064378561 is a wasteful number, since it uses less digits than its factorization.

54064378561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611871.

The product of its (nonzero) digits is 2419200, while the sum is 49.

The spelling of 54064378561 in words is "fifty-four billion, sixty-four million, three hundred seventy-eight thousand, five hundred sixty-one".