20100210009 has 32 divisors (see below), whose sum is σ = 29343541248. Its totient is φ = 12137520000.

The previous prime is 20100209977. The next prime is 20100210023. The reversal of 20100210009 is 90001200102.

It is a happy number.

It is not a de Polignac number, because 20100210009 - 2⁵ = 20100209977 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20100210009.

It is not an unprimeable number, because it can be changed into a prime (20100210059) 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 31 ways as a sum of consecutive naturals, for example, 19495324 + ... + 19496354.

It is an arithmetic number, because the mean of its divisors is an integer number (916985664).

Almost surely, 2^20100210009 is an apocalyptic number.

It is an amenable number.

20100210009 is a deficient number, since it is larger than the sum of its proper divisors (9243331239).

20100210009 is a wasteful number, since it uses less digits than its factorization.

20100210009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2629.

The product of its (nonzero) digits is 36, while the sum is 15.

The spelling of 20100210009 in words is "twenty billion, one hundred million, two hundred ten thousand, nine".