90910000010 has 16 divisors (see below), whose sum is σ = 165258180072. Its totient is φ = 36003960000.

The previous prime is 90909999953. The next prime is 90910000019. The reversal of 90910000010 is 1000001909.

It can be written as a sum of positive squares in 4 ways, for example, as 76425155401 + 14484844609 = 276451^2 + 120353^2 .

It is not an unprimeable number, because it can be changed into a prime (90910000019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45003941 + ... + 45005960.

Almost surely, 2^90910000010 is an apocalyptic number.

90910000010 is a deficient number, since it is larger than the sum of its proper divisors (74348180062).

90910000010 is a wasteful number, since it uses less digits than its factorization.

90910000010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90010009.

The product of its (nonzero) digits is 81, while the sum is 20.

Adding to 90910000010 its reverse (1000001909), we get a palindrome (91910001919).

The spelling of 90910000010 in words is "ninety billion, nine hundred ten million, ten", and thus it is an aban number.