9837938465 has 16 divisors (see below), whose sum is σ = 12967171200. Its totient is φ = 7131940992.

The previous prime is 9837938401. The next prime is 9837938489. The reversal of 9837938465 is 5648397389.

It is a cyclic number.

It is not a de Polignac number, because 9837938465 - 2⁶ = 9837938401 is a prime.

It is a super-2 number, since 2×9837938465² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9837938398 and 9837938407.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2249060 + ... + 2253429.

It is an arithmetic number, because the mean of its divisors is an integer number (810448200).

Almost surely, 2^9837938465 is an apocalyptic number.

9837938465 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

It is an amenable number.

9837938465 is a deficient number, since it is larger than the sum of its proper divisors (3129232735).

9837938465 is a wasteful number, since it uses less digits than its factorization.

9837938465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4502536.

The product of its digits is 39191040, while the sum is 62.

The square root of 9837938465 is about 99186.3824574725. The cubic root of 9837938465 is about 2142.7328803064.

The spelling of 9837938465 in words is "nine billion, eight hundred thirty-seven million, nine hundred thirty-eight thousand, four hundred sixty-five".