8519904089 has 2 divisors, whose sum is σ = 8519904090. Its totient is φ = 8519904088.

The previous prime is 8519903989. The next prime is 8519904121. The reversal of 8519904089 is 9804099158.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8451676489 + 68227600 = 91933^2 + 8260^2 .

It is a cyclic number.

It is not a de Polignac number, because 8519904089 - 2¹⁶ = 8519838553 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8519904089.

It is not a weakly prime, because it can be changed into another prime (8519924089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4259952044 + 4259952045.

It is an arithmetic number, because the mean of its divisors is an integer number (4259952045).

Almost surely, 2^8519904089 is an apocalyptic number.

It is an amenable number.

8519904089 is a deficient number, since it is larger than the sum of its proper divisors (1).

8519904089 is an equidigital number, since it uses as much as digits as its factorization.

8519904089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 933120, while the sum is 53.

The square root of 8519904089 is about 92303.3265326879. The cubic root of 8519904089 is about 2042.4192822416.

The spelling of 8519904089 in words is "eight billion, five hundred nineteen million, nine hundred four thousand, eighty-nine".