90919101010 has 16 divisors (see below), whose sum is σ = 163723447872. Its totient is φ = 36352292400.

The previous prime is 90919100999. The next prime is 90919101011. The reversal of 90919101010 is 1010191909.

It is not an unprimeable number, because it can be changed into a prime (90919101011) 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, 1893606 + ... + 1941025.

It is an arithmetic number, because the mean of its divisors is an integer number (10232715492).

Almost surely, 2^90919101010 is an apocalyptic number.

90919101010 is a deficient number, since it is larger than the sum of its proper divisors (72804346862).

90919101010 is a wasteful number, since it uses less digits than its factorization.

90919101010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3837009.

The product of its (nonzero) digits is 729, while the sum is 31.

Adding to 90919101010 its reverse (1010191909), we get a palindrome (91929292919).

The spelling of 90919101010 in words is "ninety billion, nine hundred nineteen million, one hundred one thousand, ten".