54777877745 has 16 divisors (see below), whose sum is σ = 66128868288. Its totient is φ = 43559221440.

The previous prime is 54777877729. The next prime is 54777877747.

It is a happy number.

54777877745 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 54777877745 - 2⁴ = 54777877729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54777877747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 808262 + ... + 873408.

It is an arithmetic number, because the mean of its divisors is an integer number (4133054268).

Almost surely, 2^54777877745 is an apocalyptic number.

It is an amenable number.

54777877745 is a deficient number, since it is larger than the sum of its proper divisors (11350990543).

54777877745 is a wasteful number, since it uses less digits than its factorization.

54777877745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66160.

The product of its digits is 376476800, while the sum is 68.

The spelling of 54777877745 in words is "fifty-four billion, seven hundred seventy-seven million, eight hundred seventy-seven thousand, seven hundred forty-five".