9969139552 has 24 divisors (see below), whose sum is σ = 19821074112. Its totient is φ = 4935216000.

The previous prime is 9969139549. The next prime is 9969139571. The reversal of 9969139552 is 2559319699.

9969139552 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1539024 + ... + 1545487.

It is an arithmetic number, because the mean of its divisors is an integer number (825878088).

Almost surely, 2^9969139552 is an apocalyptic number.

It is an amenable number.

9969139552 is a deficient number, since it is larger than the sum of its proper divisors (9851934560).

9969139552 is a wasteful number, since it uses less digits than its factorization.

9969139552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3084622 (or 3084614 counting only the distinct ones).

The product of its digits is 5904900, while the sum is 58.

The square root of 9969139552 is about 99845.5785300481. The cubic root of 9969139552 is about 2152.2161789989.

The spelling of 9969139552 in words is "nine billion, nine hundred sixty-nine million, one hundred thirty-nine thousand, five hundred fifty-two".