6880354990867 has 4 divisors (see below), whose sum is σ = 6880956589696. Its totient is φ = 6879753392040.

The previous prime is 6880354990849. The next prime is 6880354990889. The reversal of 6880354990867 is 7680994530886.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6880354990867 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6880354990867.

It is not an unprimeable number, because it can be changed into a prime (6880354990807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 300782259 + ... + 300805132.

It is an arithmetic number, because the mean of its divisors is an integer number (1720239147424).

Almost surely, 2^{6880354990867} is an apocalyptic number.

6880354990867 is a deficient number, since it is larger than the sum of its proper divisors (601598829).

6880354990867 is a wasteful number, since it uses less digits than its factorization.

6880354990867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601598828.

The product of its (nonzero) digits is 627056640, while the sum is 73.

The spelling of 6880354990867 in words is "six trillion, eight hundred eighty billion, three hundred fifty-four million, nine hundred ninety thousand, eight hundred sixty-seven".