6978900063 has 8 divisors (see below), whose sum is σ = 9378469888. Its totient is φ = 4615965144.

The previous prime is 6978900059. The next prime is 6978900067. The reversal of 6978900063 is 3600098796.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6978900059) and next prime (6978900067).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6978900063 - 2² = 6978900059 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6978899985 and 6978900021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6978900067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9158281 + ... + 9159042.

It is an arithmetic number, because the mean of its divisors is an integer number (1172308736).

Almost surely, 2^6978900063 is an apocalyptic number.

6978900063 is a deficient number, since it is larger than the sum of its proper divisors (2399569825).

6978900063 is a wasteful number, since it uses less digits than its factorization.

6978900063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18317453.

The product of its (nonzero) digits is 489888, while the sum is 48.

The square root of 6978900063 is about 83539.8112458964. The cubic root of 6978900063 is about 1911.0072137104.

The spelling of 6978900063 in words is "six billion, nine hundred seventy-eight million, nine hundred thousand, sixty-three".