54491019444 has 72 divisors (see below), whose sum is σ = 139636328832. Its totient is φ = 17915140800.

The previous prime is 54491019413. The next prime is 54491019487. The reversal of 54491019444 is 44491019445.

54491019444 is a `hidden beast` number, since 5 + 449 + 10 + 194 + 4 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 54491019444.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 927777 + ... + 984759.

It is an arithmetic number, because the mean of its divisors is an integer number (1939393456).

Almost surely, 2^54491019444 is an apocalyptic number.

It is an amenable number.

54491019444 is an abundant number, since it is smaller than the sum of its proper divisors (85145309388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54491019444 is a wasteful number, since it uses less digits than its factorization.

54491019444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57357 (or 57352 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

Subtracting from 54491019444 its reverse (44491019445), we obtain a palindrome (9999999999).

It can be divided in two parts, 5449101 and 9444, that added together give a palindrome (5458545).

The spelling of 54491019444 in words is "fifty-four billion, four hundred ninety-one million, nineteen thousand, four hundred forty-four".