9929726534 has 64 divisors (see below), whose sum is σ = 19319516160. Its totient is φ = 3717083520.

The previous prime is 9929726483. The next prime is 9929726549. The reversal of 9929726534 is 4356279299.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 9929726534.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5334764 + ... + 5336624.

It is an arithmetic number, because the mean of its divisors is an integer number (301867440).

Almost surely, 2^9929726534 is an apocalyptic number.

9929726534 is a deficient number, since it is larger than the sum of its proper divisors (9389789626).

9929726534 is a wasteful number, since it uses less digits than its factorization.

9929726534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3445.

The product of its digits is 7348320, while the sum is 56.

The square root of 9929726534 is about 99648.0131964506. The cubic root of 9929726534 is about 2149.3761690375.

The spelling of 9929726534 in words is "nine billion, nine hundred twenty-nine million, seven hundred twenty-six thousand, five hundred thirty-four".