9838349757 has 12 divisors (see below), whose sum is σ = 14306327100. Its totient is φ = 6514879488.

The previous prime is 9838349753. The next prime is 9838349783. The reversal of 9838349757 is 7579438389.

9838349757 is a `hidden beast` number, since 98 + 3 + 8 + 3 + 497 + 57 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 459202041 + 9379147716 = 21429^2 + 96846^2 .

It is not a de Polignac number, because 9838349757 - 2² = 9838349753 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9838349694 and 9838349703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9838349753) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3666948 + ... + 3669629.

It is an arithmetic number, because the mean of its divisors is an integer number (1192193925).

Almost surely, 2^9838349757 is an apocalyptic number.

It is an amenable number.

9838349757 is a deficient number, since it is larger than the sum of its proper divisors (4467977343).

9838349757 is a wasteful number, since it uses less digits than its factorization.

9838349757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7336732 (or 7336729 counting only the distinct ones).

The product of its digits is 45722880, while the sum is 63.

The square root of 9838349757 is about 99188.4557647713. The cubic root of 9838349757 is about 2142.7627401059.

The spelling of 9838349757 in words is "nine billion, eight hundred thirty-eight million, three hundred forty-nine thousand, seven hundred fifty-seven".