6694396078 has 8 divisors (see below), whose sum is σ = 10206210600. Its totient is φ = 3292325880.

The previous prime is 6694396069. The next prime is 6694396087. The reversal of 6694396078 is 8706934966.

It is an interprime number because it is at equal distance from previous prime (6694396069) and next prime (6694396087).

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

It is a congruent number.

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, 27435928 + ... + 27436171.

It is an arithmetic number, because the mean of its divisors is an integer number (1275776325).

Almost surely, 2^6694396078 is an apocalyptic number.

6694396078 is a deficient number, since it is larger than the sum of its proper divisors (3511814522).

6694396078 is a wasteful number, since it uses less digits than its factorization.

6694396078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54872162.

The product of its (nonzero) digits is 11757312, while the sum is 58.

The square root of 6694396078 is about 81819.2891560419. The cubic root of 6694396078 is about 1884.6778857033.

The spelling of 6694396078 in words is "six billion, six hundred ninety-four million, three hundred ninety-six thousand, seventy-eight".