6878840429 has 4 divisors (see below), whose sum is σ = 7025198784. Its totient is φ = 6732482076.

The previous prime is 6878840411. The next prime is 6878840447. The reversal of 6878840429 is 9240488786.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (6878840411) and next prime (6878840447).

It is a cyclic number.

It is not a de Polignac number, because 6878840429 - 2⁸ = 6878840173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6878840029) 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, 73179107 + ... + 73179200.

It is an arithmetic number, because the mean of its divisors is an integer number (1756299696).

Almost surely, 2^6878840429 is an apocalyptic number.

It is an amenable number.

6878840429 is a deficient number, since it is larger than the sum of its proper divisors (146358355).

6878840429 is a wasteful number, since it uses less digits than its factorization.

6878840429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146358354.

The product of its (nonzero) digits is 6193152, while the sum is 56.

The square root of 6878840429 is about 82938.7751838668. The cubic root of 6878840429 is about 1901.8302243268.

The spelling of 6878840429 in words is "six billion, eight hundred seventy-eight million, eight hundred forty thousand, four hundred twenty-nine".