90909100910 has 16 divisors (see below), whose sum is σ = 163781341200. Its totient is φ = 36331427136.

The previous prime is 90909100853. The next prime is 90909100913. The reversal of 90909100910 is 1900190909.

It is a happy number.

It is a super-3 number, since 3×90909100910³ (a number of 34 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90909100913) 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, 4014800 + ... + 4037379.

It is an arithmetic number, because the mean of its divisors is an integer number (10236333825).

Almost surely, 2^90909100910 is an apocalyptic number.

90909100910 is a deficient number, since it is larger than the sum of its proper divisors (72872240290).

90909100910 is a wasteful number, since it uses less digits than its factorization.

90909100910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8053315.

The product of its (nonzero) digits is 6561, while the sum is 38.

The spelling of 90909100910 in words is "ninety billion, nine hundred nine million, one hundred thousand, nine hundred ten".