546546978 has 48 divisors (see below), whose sum is σ = 1198937376. Its totient is φ = 179928000.

The previous prime is 546546977. The next prime is 546546997. The reversal of 546546978 is 879645645.

546546978 is a `hidden beast` number, since 5 + 4 + 6 + 546 + 97 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (546546977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 618525 + ... + 619407.

It is an arithmetic number, because the mean of its divisors is an integer number (24977862).

Almost surely, 2^546546978 is an apocalyptic number.

546546978 is an abundant number, since it is smaller than the sum of its proper divisors (652390398).

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

546546978 is a wasteful number, since it uses less digits than its factorization.

546546978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1279 (or 1276 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 54.

The square root of 546546978 is about 23378.3442099735. The cubic root of 546546978 is about 817.6030428708.

The spelling of 546546978 in words is "five hundred forty-six million, five hundred forty-six thousand, nine hundred seventy-eight".