6694396077 has 12 divisors (see below), whose sum is σ = 9330817664. Its totient is φ = 4268889240.

The previous prime is 6694396069. The next prime is 6694396087. The reversal of 6694396077 is 7706934966.

It is not a de Polignac number, because 6694396077 - 2³ = 6694396069 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 (6694396087) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2107549 + ... + 2110722.

Almost surely, 2^6694396077 is an apocalyptic number.

It is an amenable number.

6694396077 is a deficient number, since it is larger than the sum of its proper divisors (2636421587).

6694396077 is a wasteful number, since it uses less digits than its factorization.

6694396077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4218320 (or 4218297 counting only the distinct ones).

The product of its (nonzero) digits is 10287648, while the sum is 57.

The square root of 6694396077 is about 81819.2891499309. The cubic root of 6694396077 is about 1884.6778856094.

The spelling of 6694396077 in words is "six billion, six hundred ninety-four million, three hundred ninety-six thousand, seventy-seven".