54777993843 has 4 divisors (see below), whose sum is σ = 73037325128. Its totient is φ = 36518662560.

The previous prime is 54777993797. The next prime is 54777993869. The reversal of 54777993843 is 34839977745.

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

It is not a de Polignac number, because 54777993843 - 2¹³ = 54777985651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54777993943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9129665638 + ... + 9129665643.

It is an arithmetic number, because the mean of its divisors is an integer number (18259331282).

Almost surely, 2^54777993843 is an apocalyptic number.

54777993843 is a deficient number, since it is larger than the sum of its proper divisors (18259331285).

54777993843 is a wasteful number, since it uses less digits than its factorization.

54777993843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18259331284.

The product of its digits is 160030080, while the sum is 66.

The spelling of 54777993843 in words is "fifty-four billion, seven hundred seventy-seven million, nine hundred ninety-three thousand, eight hundred forty-three".