9986889292 has 24 divisors (see below), whose sum is σ = 18688350240. Its totient is φ = 4653177600.

The previous prime is 9986889287. The next prime is 9986889313. The reversal of 9986889292 is 2929886899.

It is a super-2 number, since 2×9986889292² (a number of 21 digits) contains 22 as substring.

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, 720192 + ... + 733927.

It is an arithmetic number, because the mean of its divisors is an integer number (778681260).

Almost surely, 2^9986889292 is an apocalyptic number.

It is an amenable number.

9986889292 is a deficient number, since it is larger than the sum of its proper divisors (8701460948).

9986889292 is a wasteful number, since it uses less digits than its factorization.

9986889292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1454241 (or 1454239 counting only the distinct ones).

The product of its digits is 80621568, while the sum is 70.

The square root of 9986889292 is about 99934.4249595704. The cubic root of 9986889292 is about 2153.4927394530.

The spelling of 9986889292 in words is "nine billion, nine hundred eighty-six million, eight hundred eighty-nine thousand, two hundred ninety-two".