1009788895 has 8 divisors (see below), whose sum is σ = 1264431456. Its totient is φ = 772707936.

The previous prime is 1009788893. The next prime is 1009788973. The reversal of 1009788895 is 5988879001.

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 1009788895 - 2¹ = 1009788893 is a prime.

It is a super-2 number, since 2×1009788895² = 2039347224930642050, which 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 (1009788893) 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, 4390272 + ... + 4390501.

It is an arithmetic number, because the mean of its divisors is an integer number (158053932).

Almost surely, 2^1009788895 is an apocalyptic number.

1009788895 is a deficient number, since it is larger than the sum of its proper divisors (254642561).

1009788895 is an equidigital number, since it uses as much as digits as its factorization.

1009788895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8780801.

The product of its (nonzero) digits is 1451520, while the sum is 55.

The square root of 1009788895 is about 31777.1756926257. The cubic root of 1009788895 is about 1003.2523755852.

The spelling of 1009788895 in words is "one billion, nine million, seven hundred eighty-eight thousand, eight hundred ninety-five".