548406354420 has 240 divisors, whose sum is σ = 1798627944960. Its totient is φ = 139878332352.

The previous prime is 548406354413. The next prime is 548406354437. The reversal of 548406354420 is 24453604845.

548406354420 is a `hidden beast` number, since 5 + 4 + 8 + 4 + 0 + 635 + 4 + 4 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 19696629 + ... + 19724451.

It is an arithmetic number, because the mean of its divisors is an integer number (7494283104).

Almost surely, 2^548406354420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 548406354420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (899313972480).

548406354420 is an abundant number, since it is smaller than the sum of its proper divisors (1250221590540).

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

548406354420 is a wasteful number, since it uses less digits than its factorization.

548406354420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27913 (or 27856 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 45.

The spelling of 548406354420 in words is "five hundred forty-eight billion, four hundred six million, three hundred fifty-four thousand, four hundred twenty".