6649410694 has 8 divisors (see below), whose sum is σ = 10206072360. Its totient is φ = 3247386576.

The previous prime is 6649410683. The next prime is 6649410697. The reversal of 6649410694 is 4960149466.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6649410697) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38659279 + ... + 38659450.

It is an arithmetic number, because the mean of its divisors is an integer number (1275759045).

Almost surely, 2^6649410694 is an apocalyptic number.

6649410694 is a deficient number, since it is larger than the sum of its proper divisors (3556661666).

6649410694 is a wasteful number, since it uses less digits than its factorization.

6649410694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77318774.

The product of its (nonzero) digits is 1119744, while the sum is 49.

The square root of 6649410694 is about 81543.9188045313. The cubic root of 6649410694 is about 1880.4468054897.

The spelling of 6649410694 in words is "six billion, six hundred forty-nine million, four hundred ten thousand, six hundred ninety-four".