6356622689 has 4 divisors (see below), whose sum is σ = 6398719680. Its totient is φ = 6314525700.

The previous prime is 6356622683. The next prime is 6356622719. The reversal of 6356622689 is 9862266536.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6356622689 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6356622689.

It is not an unprimeable number, because it can be changed into a prime (6356622683) 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, 21048269 + ... + 21048570.

It is an arithmetic number, because the mean of its divisors is an integer number (1599679920).

Almost surely, 2^6356622689 is an apocalyptic number.

It is an amenable number.

6356622689 is a deficient number, since it is larger than the sum of its proper divisors (42096991).

6356622689 is a wasteful number, since it uses less digits than its factorization.

6356622689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42096990.

The product of its digits is 5598720, while the sum is 53.

The square root of 6356622689 is about 79728.4308700479. The cubic root of 6356622689 is about 1852.4314451851.

The spelling of 6356622689 in words is "six billion, three hundred fifty-six million, six hundred twenty-two thousand, six hundred eighty-nine".