9778833409 has 8 divisors (see below), whose sum is σ = 10156212992. Its totient is φ = 9405324720.

The previous prime is 9778833403. The next prime is 9778833413. The reversal of 9778833409 is 9043388779.

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 9778833409 - 2¹⁷ = 9778702337 is a prime.

It is a super-2 number, since 2×9778833409² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9778833403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 962574 + ... + 972679.

It is an arithmetic number, because the mean of its divisors is an integer number (1269526624).

Almost surely, 2^9778833409 is an apocalyptic number.

It is an amenable number.

9778833409 is a deficient number, since it is larger than the sum of its proper divisors (377379583).

9778833409 is a wasteful number, since it uses less digits than its factorization.

9778833409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1935447.

The product of its (nonzero) digits is 9144576, while the sum is 58.

The square root of 9778833409 is about 98887.9841487327. The cubic root of 9778833409 is about 2138.4331711686.

The spelling of 9778833409 in words is "nine billion, seven hundred seventy-eight million, eight hundred thirty-three thousand, four hundred nine".