6913229878 has 4 divisors (see below), whose sum is σ = 10369844820. Its totient is φ = 3456614938.

The previous prime is 6913229863. The next prime is 6913229879. The reversal of 6913229878 is 8789223196.

6913229878 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6913229879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1728307468 + ... + 1728307471.

It is an arithmetic number, because the mean of its divisors is an integer number (2592461205).

Almost surely, 2^6913229878 is an apocalyptic number.

6913229878 is a deficient number, since it is larger than the sum of its proper divisors (3456614942).

6913229878 is a wasteful number, since it uses less digits than its factorization.

6913229878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3456614941.

The product of its digits is 2612736, while the sum is 55.

The square root of 6913229878 is about 83145.8350009187. The cubic root of 6913229878 is about 1904.9942365429.

The spelling of 6913229878 in words is "six billion, nine hundred thirteen million, two hundred twenty-nine thousand, eight hundred seventy-eight".