5657137993 has 8 divisors (see below), whose sum is σ = 6175759688. Its totient is φ = 5150438784.

The previous prime is 5657137979. The next prime is 5657138023. The reversal of 5657137993 is 3997317565.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 49674304 + 5607463689 = 7048^2 + 74883^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5657137993 - 2¹³ = 5657129801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5657137933) 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 7 ways as a sum of consecutive naturals, for example, 2979630 + ... + 2981527.

It is an arithmetic number, because the mean of its divisors is an integer number (771969961).

Almost surely, 2^5657137993 is an apocalyptic number.

It is an amenable number.

5657137993 is a deficient number, since it is larger than the sum of its proper divisors (518621695).

5657137993 is a wasteful number, since it uses less digits than its factorization.

5657137993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5961243.

The product of its digits is 5358150, while the sum is 55.

The square root of 5657137993 is about 75213.9481279902. The cubic root of 5657137993 is about 1781.8272269841.

The spelling of 5657137993 in words is "five billion, six hundred fifty-seven million, one hundred thirty-seven thousand, nine hundred ninety-three".