6689354694 has 32 divisors (see below), whose sum is σ = 14598645120. Its totient is φ = 2026564800.

The previous prime is 6689354689. The next prime is 6689354723. The reversal of 6689354694 is 4964539866.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 312309 + ... + 333039.

It is an arithmetic number, because the mean of its divisors is an integer number (456207660).

Almost surely, 2^6689354694 is an apocalyptic number.

6689354694 is an abundant number, since it is smaller than the sum of its proper divisors (7909290426).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6689354694 is a wasteful number, since it uses less digits than its factorization.

6689354694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25636.

The product of its digits is 33592320, while the sum is 60.

The square root of 6689354694 is about 81788.4753128459. The cubic root of 6689354694 is about 1884.2046654699.

The spelling of 6689354694 in words is "six billion, six hundred eighty-nine million, three hundred fifty-four thousand, six hundred ninety-four".