6829606645 has 4 divisors (see below), whose sum is σ = 8195527980. Its totient is φ = 5463685312.

The previous prime is 6829606627. The next prime is 6829606669. The reversal of 6829606645 is 5466069286.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2673096804 + 4156509841 = 51702^2 + 64471^2 .

It is a cyclic number.

It is not a de Polignac number, because 6829606645 - 2¹⁹ = 6829082357 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6829606592 and 6829606601.

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, 682960660 + ... + 682960669.

It is an arithmetic number, because the mean of its divisors is an integer number (2048881995).

Almost surely, 2^6829606645 is an apocalyptic number.

It is an amenable number.

6829606645 is a deficient number, since it is larger than the sum of its proper divisors (1365921335).

6829606645 is a wasteful number, since it uses less digits than its factorization.

6829606645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1365921334.

The product of its (nonzero) digits is 3732480, while the sum is 52.

The square root of 6829606645 is about 82641.4341901204. The cubic root of 6829606645 is about 1897.2820459478.

The spelling of 6829606645 in words is "six billion, eight hundred twenty-nine million, six hundred six thousand, six hundred forty-five".