5657639927 has 2 divisors, whose sum is σ = 5657639928. Its totient is φ = 5657639926.

The previous prime is 5657639909. The next prime is 5657639959. The reversal of 5657639927 is 7299367565.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5657639927 - 2⁶ = 5657639863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5657639227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2828819963 + 2828819964.

It is an arithmetic number, because the mean of its divisors is an integer number (2828819964).

Almost surely, 2^5657639927 is an apocalyptic number.

5657639927 is a deficient number, since it is larger than the sum of its proper divisors (1).

5657639927 is an equidigital number, since it uses as much as digits as its factorization.

5657639927 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21432600, while the sum is 59.

The square root of 5657639927 is about 75217.2847622141. The cubic root of 5657639927 is about 1781.8799234311.

The spelling of 5657639927 in words is "five billion, six hundred fifty-seven million, six hundred thirty-nine thousand, nine hundred twenty-seven".