539678346840 has 160 divisors (see below), whose sum is σ = 1821448157760. Its totient is φ = 143316864000.

The previous prime is 539678346803. The next prime is 539678346859. The reversal of 539678346840 is 48643876935.

539678346840 is a `hidden beast` number, since 5 + 3 + 96 + 7 + 83 + 468 + 4 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 435265 + ... + 1126415.

It is an arithmetic number, because the mean of its divisors is an integer number (11384050986).

Almost surely, 2^539678346840 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 539678346840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (910724078880).

539678346840 is an abundant number, since it is smaller than the sum of its proper divisors (1281769810920).

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

539678346840 is a wasteful number, since it uses less digits than its factorization.

539678346840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691415 (or 691402 counting only the distinct ones).

The product of its (nonzero) digits is 104509440, while the sum is 63.

The spelling of 539678346840 in words is "five hundred thirty-nine billion, six hundred seventy-eight million, three hundred forty-six thousand, eight hundred forty".