5639125680 has 240 divisors, whose sum is σ = 19635243264. Its totient is φ = 1448847360.

The previous prime is 5639125633. The next prime is 5639125697. The reversal of 5639125680 is 865219365.

5639125680 is a `hidden beast` number, since 5 + 6 + 391 + 256 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7075042 + ... + 7075838.

Almost surely, 2^5639125680 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 5639125680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9817621632).

5639125680 is an abundant number, since it is smaller than the sum of its proper divisors (13996117584).

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

5639125680 is a wasteful number, since it uses less digits than its factorization.

5639125680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1164 (or 1155 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The square root of 5639125680 is about 75094.1121526848. The cubic root of 5639125680 is about 1779.9341052070.

The spelling of 5639125680 in words is "five billion, six hundred thirty-nine million, one hundred twenty-five thousand, six hundred eighty".