5657626669 has 4 divisors (see below), whose sum is σ = 5764374396. Its totient is φ = 5550878944.

The previous prime is 5657626661. The next prime is 5657626679. The reversal of 5657626669 is 9666267565.

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 5145192900 + 512433769 = 71730^2 + 22637^2 .

It is a cyclic number.

It is not a de Polignac number, because 5657626669 - 2³ = 5657626661 is a prime.

It is a super-2 number, since 2×5657626669² = 64017479051560071122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5657626661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53373784 + ... + 53373889.

It is an arithmetic number, because the mean of its divisors is an integer number (1441093599).

Almost surely, 2^5657626669 is an apocalyptic number.

It is an amenable number.

5657626669 is a deficient number, since it is larger than the sum of its proper divisors (106747727).

5657626669 is a wasteful number, since it uses less digits than its factorization.

5657626669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106747726.

The product of its digits is 24494400, while the sum is 58.

The square root of 5657626669 is about 75217.1966308237. The cubic root of 5657626669 is about 1781.8785315561.

The spelling of 5657626669 in words is "five billion, six hundred fifty-seven million, six hundred twenty-six thousand, six hundred sixty-nine".