54329444991 has 12 divisors (see below), whose sum is σ = 78499524168. Its totient is φ = 36208710384.

The previous prime is 54329444989. The next prime is 54329445043. The reversal of 54329444991 is 19944492345.

54329444991 is a `hidden beast` number, since 543 + 2 + 9 + 4 + 4 + 4 + 9 + 91 = 666.

It is not a de Polignac number, because 54329444991 - 2¹ = 54329444989 is a prime.

It is a super-3 number, since 3×54329444991³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54329444291) 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 11 ways as a sum of consecutive naturals, for example, 878400 + ... + 938213.

It is an arithmetic number, because the mean of its divisors is an integer number (6541627014).

Almost surely, 2^54329444991 is an apocalyptic number.

54329444991 is a deficient number, since it is larger than the sum of its proper divisors (24170079177).

54329444991 is a wasteful number, since it uses less digits than its factorization.

54329444991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1819942 (or 1819939 counting only the distinct ones).

The product of its digits is 5598720, while the sum is 54.

The spelling of 54329444991 in words is "fifty-four billion, three hundred twenty-nine million, four hundred forty-four thousand, nine hundred ninety-one".