9100478890 has 36 divisors (see below), whose sum is σ = 16604869158. Its totient is φ = 3591079680.

The previous prime is 9100478867. The next prime is 9100478899. The reversal of 9100478890 is 988740019.

It is a happy number.

9100478890 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 6895143369 + 2205335521 = 83037^2 + 46961^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 9100478890.

It is not an unprimeable number, because it can be changed into a prime (9100478899) 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 17 ways as a sum of consecutive naturals, for example, 29261835 + ... + 29262145.

Almost surely, 2^9100478890 is an apocalyptic number.

9100478890 is a deficient number, since it is larger than the sum of its proper divisors (7504390268).

9100478890 is an frugal number, since it uses more digits than its factorization.

9100478890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 823 (or 415 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 46.

The square root of 9100478890 is about 95396.4301742995. The cubic root of 9100478890 is about 2087.7961009931.

The spelling of 9100478890 in words is "nine billion, one hundred million, four hundred seventy-eight thousand, eight hundred ninety".