1139688789 has 8 divisors (see below), whose sum is σ = 1608972480. Its totient is φ = 715098816.

The previous prime is 1139688757. The next prime is 1139688811. The reversal of 1139688789 is 9878869311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1139688789 - 2⁵ = 1139688757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1139684789) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11173369 + ... + 11173470.

It is an arithmetic number, because the mean of its divisors is an integer number (201121560).

Almost surely, 2^1139688789 is an apocalyptic number.

It is an amenable number.

1139688789 is a deficient number, since it is larger than the sum of its proper divisors (469283691).

1139688789 is a wasteful number, since it uses less digits than its factorization.

1139688789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22346859.

The product of its digits is 5225472, while the sum is 60.

The square root of 1139688789 is about 33759.2770805300. The cubic root of 1139688789 is about 1044.5488583225.

The spelling of 1139688789 in words is "one billion, one hundred thirty-nine million, six hundred eighty-eight thousand, seven hundred eighty-nine".