9988739746 has 16 divisors (see below), whose sum is σ = 15176766528. Its totient is φ = 4929922000.

The previous prime is 9988739701. The next prime is 9988739777. The reversal of 9988739746 is 6479378899.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170571 + ... + 221521.

It is an arithmetic number, because the mean of its divisors is an integer number (948547908).

Almost surely, 2^9988739746 is an apocalyptic number.

9988739746 is a deficient number, since it is larger than the sum of its proper divisors (5188026782).

9988739746 is a wasteful number, since it uses less digits than its factorization.

9988739746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52217.

The product of its digits is 164602368, while the sum is 70.

The square root of 9988739746 is about 99943.6828719054. The cubic root of 9988739746 is about 2153.6257369274.

The spelling of 9988739746 in words is "nine billion, nine hundred eighty-eight million, seven hundred thirty-nine thousand, seven hundred forty-six".