54777777723 has 48 divisors (see below), whose sum is σ = 89009275680. Its totient is φ = 32288191488.

The previous prime is 54777777713. The next prime is 54777777739. The reversal of 54777777723 is 32777777745.

It is a happy number.

54777777723 is a `hidden beast` number, since 5 + 477 + 7 + 77 + 77 + 23 = 666.

It is not a de Polignac number, because 54777777723 - 2¹⁰ = 54777776699 is a prime.

It is a super-3 number, since 3×54777777723³ (a number of 33 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (54777777713) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2665 + ... + 331002.

It is an arithmetic number, because the mean of its divisors is an integer number (1854359910).

Almost surely, 2^54777777723 is an apocalyptic number.

54777777723 is a deficient number, since it is larger than the sum of its proper divisors (34231497957).

54777777723 is a wasteful number, since it uses less digits than its factorization.

54777777723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333756 (or 333753 counting only the distinct ones).

The product of its digits is 98825160, while the sum is 63.

It can be divided in two parts, 54 and 777777723, that added together give a palindrome (777777777).

The spelling of 54777777723 in words is "fifty-four billion, seven hundred seventy-seven million, seven hundred seventy-seven thousand, seven hundred twenty-three".