5109378889 has 4 divisors (see below), whose sum is σ = 5109584580. Its totient is φ = 5109173200.

The previous prime is 5109378853. The next prime is 5109378913. The reversal of 5109378889 is 9888739015.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3512577289 + 1596801600 = 59267^2 + 39960^2 .

It is a cyclic number.

It is not a de Polignac number, because 5109378889 - 2⁷ = 5109378761 is a prime.

It is a super-2 number, since 2×5109378889² = 52211505262717748642, which contains 22 as substring.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5109378289) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59494 + ... + 117295.

It is an arithmetic number, because the mean of its divisors is an integer number (1277396145).

Almost surely, 2^5109378889 is an apocalyptic number.

It is an amenable number.

5109378889 is a deficient number, since it is larger than the sum of its proper divisors (205691).

5109378889 is a wasteful number, since it uses less digits than its factorization.

5109378889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205690.

The product of its (nonzero) digits is 4354560, while the sum is 58.

The square root of 5109378889 is about 71479.9194809283. The cubic root of 5109378889 is about 1722.3551306194.

The spelling of 5109378889 in words is "five billion, one hundred nine million, three hundred seventy-eight thousand, eight hundred eighty-nine".