10019909009 has 16 divisors (see below), whose sum is σ = 11116828800. Its totient is φ = 8954736000.

The previous prime is 10019908981. The next prime is 10019909017. The reversal of 10019909009 is 90090991001.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10019909009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10019909059) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 254189 + ... + 290949.

It is an arithmetic number, because the mean of its divisors is an integer number (694801800).

Almost surely, 2^10019909009 is an apocalyptic number.

It is an amenable number.

10019909009 is a deficient number, since it is larger than the sum of its proper divisors (1096919791).

10019909009 is a wasteful number, since it uses less digits than its factorization.

10019909009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37192.

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

The spelling of 10019909009 in words is "ten billion, nineteen million, nine hundred nine thousand, nine".