6109878615 has 16 divisors (see below), whose sum is σ = 9817767648. Its totient is φ = 3244614656.

The previous prime is 6109878613. The next prime is 6109878617. The reversal of 6109878615 is 5168789016.

It is an interprime number because it is at equal distance from previous prime (6109878613) and next prime (6109878617).

It is a cyclic number.

It is not a de Polignac number, because 6109878615 - 2¹ = 6109878613 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6109878613) 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, 870594 + ... + 877583.

It is an arithmetic number, because the mean of its divisors is an integer number (613610478).

Almost surely, 2^6109878615 is an apocalyptic number.

6109878615 is a deficient number, since it is larger than the sum of its proper divisors (3707889033).

6109878615 is a wasteful number, since it uses less digits than its factorization.

6109878615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1748418.

The product of its (nonzero) digits is 725760, while the sum is 51.

The square root of 6109878615 is about 78165.7125279364. The cubic root of 6109878615 is about 1828.1459334063.

The spelling of 6109878615 in words is "six billion, one hundred nine million, eight hundred seventy-eight thousand, six hundred fifteen".