5139868608 has 280 divisors, whose sum is σ = 17555260800. Its totient is φ = 1456538112.

The previous prime is 5139868583. The next prime is 5139868661. The reversal of 5139868608 is 8068689315.

5139868608 is a `hidden beast` number, since 513 + 9 + 8 + 68 + 60 + 8 = 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 39 ways as a sum of consecutive naturals, for example, 5043523 + ... + 5044541.

It is an arithmetic number, because the mean of its divisors is an integer number (62697360).

Almost surely, 2^5139868608 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 5139868608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8777630400).

5139868608 is an abundant number, since it is smaller than the sum of its proper divisors (12415392192).

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

5139868608 is a wasteful number, since it uses less digits than its factorization.

5139868608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1189 (or 1170 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 54.

The square root of 5139868608 is about 71692.8769683572. The cubic root of 5139868608 is about 1725.7743336435.

The spelling of 5139868608 in words is "five billion, one hundred thirty-nine million, eight hundred sixty-eight thousand, six hundred eight".