6631705694 has 8 divisors (see below), whose sum is σ = 10096029768. Its totient is φ = 3266362440.

The previous prime is 6631705681. The next prime is 6631705697. The reversal of 6631705694 is 4965071366.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6631705697) 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, 24745037 + ... + 24745304.

It is an arithmetic number, because the mean of its divisors is an integer number (1262003721).

Almost surely, 2^6631705694 is an apocalyptic number.

6631705694 is a deficient number, since it is larger than the sum of its proper divisors (3464324074).

6631705694 is a wasteful number, since it uses less digits than its factorization.

6631705694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49490410.

The product of its (nonzero) digits is 816480, while the sum is 47.

The square root of 6631705694 is about 81435.2853129404. The cubic root of 6631705694 is about 1878.7763364611.

The spelling of 6631705694 in words is "six billion, six hundred thirty-one million, seven hundred five thousand, six hundred ninety-four".