6680380778 has 8 divisors (see below), whose sum is σ = 10147414080. Its totient is φ = 3297909420.

The previous prime is 6680380739. The next prime is 6680380789. The reversal of 6680380778 is 8770830866.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21140288 + ... + 21140603.

It is an arithmetic number, because the mean of its divisors is an integer number (1268426760).

Almost surely, 2^6680380778 is an apocalyptic number.

6680380778 is a deficient number, since it is larger than the sum of its proper divisors (3467033302).

6680380778 is a wasteful number, since it uses less digits than its factorization.

6680380778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42280972.

The product of its (nonzero) digits is 2709504, while the sum is 53.

The square root of 6680380778 is about 81733.5963848404. The cubic root of 6680380778 is about 1883.3617211234.

The spelling of 6680380778 in words is "six billion, six hundred eighty million, three hundred eighty thousand, seven hundred seventy-eight".