5639281837020 has 504 divisors, whose sum is σ = 19889729344800. Its totient is φ = 1340247347712.

The previous prime is 5639281836973. The next prime is 5639281837069. The reversal of 5639281837020 is 207381829365.

5639281837020 is a `hidden beast` number, since 5 + 6 + 392 + 8 + 183 + 70 + 2 + 0 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 167 ways as a sum of consecutive naturals, for example, 71417121 + ... + 71496039.

It is an arithmetic number, because the mean of its divisors is an integer number (39463748700).

Almost surely, 2^{5639281837020} 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 5639281837020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9944864672400).

5639281837020 is an abundant number, since it is smaller than the sum of its proper divisors (14250447507780).

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

5639281837020 is a wasteful number, since it uses less digits than its factorization.

5639281837020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79001 (or 78971 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The spelling of 5639281837020 in words is "five trillion, six hundred thirty-nine billion, two hundred eighty-one million, eight hundred thirty-seven thousand, twenty".