549339790678 has 128 divisors (see below), whose sum is σ = 1067651020800. Its totient is φ = 206340784128.

The previous prime is 549339790663. The next prime is 549339790759. The reversal of 549339790678 is 876097933945.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 63805638 + ... + 63814246.

It is an arithmetic number, because the mean of its divisors is an integer number (8341023600).

Almost surely, 2^549339790678 is an apocalyptic number.

549339790678 is a deficient number, since it is larger than the sum of its proper divisors (518311230122).

549339790678 is a wasteful number, since it uses less digits than its factorization.

549339790678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8894.

The product of its (nonzero) digits is 308629440, while the sum is 70.

The spelling of 549339790678 in words is "five hundred forty-nine billion, three hundred thirty-nine million, seven hundred ninety thousand, six hundred seventy-eight".