9812963839 has 32 divisors (see below), whose sum is σ = 12711513600. Its totient is φ = 7372477440.

The previous prime is 9812963791. The next prime is 9812963857. The reversal of 9812963839 is 9383692189.

It is a cyclic number.

It is not a de Polignac number, because 9812963839 - 2²⁷ = 9678746111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9812963879) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 96619 + ... + 170179.

It is an arithmetic number, because the mean of its divisors is an integer number (397234800).

Almost surely, 2^9812963839 is an apocalyptic number.

9812963839 is a deficient number, since it is larger than the sum of its proper divisors (2898549761).

9812963839 is a wasteful number, since it uses less digits than its factorization.

9812963839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73663.

The product of its digits is 5038848, while the sum is 58.

The square root of 9812963839 is about 99060.4050011911. The cubic root of 9812963839 is about 2140.9181606868.

The spelling of 9812963839 in words is "nine billion, eight hundred twelve million, nine hundred sixty-three thousand, eight hundred thirty-nine".