9773138431 has 8 divisors (see below), whose sum is σ = 11172998304. Its totient is φ = 8374202880.

The previous prime is 9773138413. The next prime is 9773138437. The reversal of 9773138431 is 1348313779.

9773138431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 9773138431 - 2⁷ = 9773138303 is a prime.

It is a super-2 number, since 2×9773138431² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9773138437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208270 + ... + 250843.

It is an arithmetic number, because the mean of its divisors is an integer number (1396624788).

Almost surely, 2^9773138431 is an apocalyptic number.

9773138431 is a deficient number, since it is larger than the sum of its proper divisors (1399859873).

9773138431 is a wasteful number, since it uses less digits than its factorization.

9773138431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462161.

The product of its digits is 381024, while the sum is 46.

The square root of 9773138431 is about 98859.1848590711. The cubic root of 9773138431 is about 2138.0179650374.

The spelling of 9773138431 in words is "nine billion, seven hundred seventy-three million, one hundred thirty-eight thousand, four hundred thirty-one".