9886951720 has 64 divisors (see below), whose sum is σ = 23432068800. Its totient is φ = 3744138240.

The previous prime is 9886951699. The next prime is 9886951721. The reversal of 9886951720 is 271596889.

It is a super-2 number, since 2×9886951720² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9886951721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1464192 + ... + 1470928.

It is an arithmetic number, because the mean of its divisors is an integer number (366126075).

Almost surely, 2^9886951720 is an apocalyptic number.

It is an amenable number.

9886951720 is an abundant number, since it is smaller than the sum of its proper divisors (13545117080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9886951720 is a wasteful number, since it uses less digits than its factorization.

9886951720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8698 (or 8694 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 55.

The square root of 9886951720 is about 99433.1520168198. The cubic root of 9886951720 is about 2146.2853991333.

The spelling of 9886951720 in words is "nine billion, eight hundred eighty-six million, nine hundred fifty-one thousand, seven hundred twenty".