54443178677 has 2 divisors, whose sum is σ = 54443178678. Its totient is φ = 54443178676.

The previous prime is 54443178593. The next prime is 54443178697. The reversal of 54443178677 is 77687134445.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50927400241 + 3515778436 = 225671^2 + 59294^2 .

It is a cyclic number.

It is not a de Polignac number, because 54443178677 - 2²² = 54438984373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54443178697) 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 as a sum of consecutive naturals, namely, 27221589338 + 27221589339.

It is an arithmetic number, because the mean of its divisors is an integer number (27221589339).

Almost surely, 2^54443178677 is an apocalyptic number.

It is an amenable number.

54443178677 is a deficient number, since it is larger than the sum of its proper divisors (1).

54443178677 is an equidigital number, since it uses as much as digits as its factorization.

54443178677 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15805440, while the sum is 56.

The spelling of 54443178677 in words is "fifty-four billion, four hundred forty-three million, one hundred seventy-eight thousand, six hundred seventy-seven".