546778782 has 64 divisors (see below), whose sum is σ = 1335398400. Its totient is φ = 164456640.

The previous prime is 546778781. The next prime is 546778787. The reversal of 546778782 is 287877645.

It is a happy number.

546778782 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (546778781) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78019 + ... + 84737.

It is an arithmetic number, because the mean of its divisors is an integer number (20865600).

Almost surely, 2^546778782 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 546778782, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (667699200).

546778782 is an abundant number, since it is smaller than the sum of its proper divisors (788619618).

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

546778782 is a wasteful number, since it uses less digits than its factorization.

546778782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6878 (or 6872 counting only the distinct ones).

The product of its digits is 5268480, while the sum is 54.

The square root of 546778782 is about 23383.3013494673. The cubic root of 546778782 is about 817.7186150453.

The spelling of 546778782 in words is "five hundred forty-six million, seven hundred seventy-eight thousand, seven hundred eighty-two".