7139000000 has 294 divisors, whose sum is σ = 19793887260. Its totient is φ = 2552000000.

The previous prime is 7138999997. The next prime is 7139000041. The reversal of 7139000000 is 9317.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 41 ways as a sum of consecutive naturals, for example, 120999971 + ... + 121000029.

Almost surely, 2^7139000000 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 7139000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9896943630).

7139000000 is an abundant number, since it is smaller than the sum of its proper divisors (12654887260).

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

7139000000 is an frugal number, since it uses more digits than its factorization.

7139000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123 (or 77 counting only the distinct ones).

The product of its (nonzero) digits is 189, while the sum is 20.

The square root of 7139000000 is about 84492.6032265547. The cubic root of 7139000000 is about 1925.5100689163.

Adding to 7139000000 its reverse (9317), we get a palindrome (7139009317).

The spelling of 7139000000 in words is "seven billion, one hundred thirty-nine million", and thus it is an aban number.