10619090909 has 12 divisors (see below), whose sum is σ = 12686682204. Its totient is φ = 8856074304.

The previous prime is 10619090857. The next prime is 10619090939. The reversal of 10619090909 is 90909091601.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5329438009 + 5289652900 = 73003^2 + 72730^2 .

It is not a de Polignac number, because 10619090909 - 2²⁸ = 10350655453 is a prime.

It is a super-2 number, since 2×10619090909² (a number of 21 digits) contains 22 as substring.

10619090909 is a modest number, since divided by 90909 gives 10619 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 10619090909.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10619090939) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2926784 + ... + 2930409.

It is an arithmetic number, because the mean of its divisors is an integer number (1057223517).

Almost surely, 2^10619090909 is an apocalyptic number.

It is an amenable number.

10619090909 is a deficient number, since it is larger than the sum of its proper divisors (2067591295).

10619090909 is an equidigital number, since it uses as much as digits as its factorization.

10619090909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5857244 (or 5857237 counting only the distinct ones).

The product of its (nonzero) digits is 39366, while the sum is 44.

The spelling of 10619090909 in words is "ten billion, six hundred nineteen million, ninety thousand, nine hundred nine".