7878502606 has 32 divisors (see below), whose sum is σ = 12866581728. Its totient is φ = 3596436480.

The previous prime is 7878502591. The next prime is 7878502607. The reversal of 7878502606 is 6062058787.

It is a self number, because there is not a number n which added to its sum of digits gives 7878502606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7878502607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1528125 + ... + 1533271.

It is an arithmetic number, because the mean of its divisors is an integer number (402080679).

Almost surely, 2^7878502606 is an apocalyptic number.

7878502606 is a deficient number, since it is larger than the sum of its proper divisors (4988079122).

7878502606 is a wasteful number, since it uses less digits than its factorization.

7878502606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5796.

The product of its (nonzero) digits is 1128960, while the sum is 49.

The square root of 7878502606 is about 88760.9295016676. The cubic root of 7878502606 is about 1989.8235246651.

The spelling of 7878502606 in words is "seven billion, eight hundred seventy-eight million, five hundred two thousand, six hundred six".