8119517409 has 16 divisors (see below), whose sum is σ = 12208453440. Its totient is φ = 5332219200.

The previous prime is 8119517333. The next prime is 8119517443. The reversal of 8119517409 is 9047159118.

It is a happy number.

8119517409 is a `hidden beast` number, since 81 + 19 + 517 + 40 + 9 = 666.

It is not a de Polignac number, because 8119517409 - 2¹³ = 8119509217 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (8119517459) 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, 2242392 + ... + 2246009.

It is an arithmetic number, because the mean of its divisors is an integer number (763028340).

Almost surely, 2^8119517409 is an apocalyptic number.

It is an amenable number.

8119517409 is a deficient number, since it is larger than the sum of its proper divisors (4088936031).

8119517409 is a wasteful number, since it uses less digits than its factorization.

8119517409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4488477 (or 4488471 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 45.

The square root of 8119517409 is about 90108.3648114868. The cubic root of 8119517409 is about 2009.9105930381.

The spelling of 8119517409 in words is "eight billion, one hundred nineteen million, five hundred seventeen thousand, four hundred nine".