1138677793 has 8 divisors (see below), whose sum is σ = 1244020896. Its totient is φ = 1033639200.

The previous prime is 1138677781. The next prime is 1138677823. The reversal of 1138677793 is 3977768311.

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

It is a de Polignac number, because none of the positive numbers 2^k-1138677793 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1138677793.

It is not an unprimeable number, because it can be changed into a prime (1138677703) 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, 68268 + ... + 83293.

It is an arithmetic number, because the mean of its divisors is an integer number (155502612).

Almost surely, 2^1138677793 is an apocalyptic number.

It is an amenable number.

1138677793 is a deficient number, since it is larger than the sum of its proper divisors (105343103).

1138677793 is a wasteful number, since it uses less digits than its factorization.

1138677793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152255.

The product of its digits is 1333584, while the sum is 52.

The square root of 1138677793 is about 33744.3001557300. The cubic root of 1138677793 is about 1044.2399005484.

The spelling of 1138677793 in words is "one billion, one hundred thirty-eight million, six hundred seventy-seven thousand, seven hundred ninety-three".