9967288386 has 24 divisors (see below), whose sum is σ = 21748580784. Its totient is φ = 3020144640.

The previous prime is 9967288367. The next prime is 9967288427. The reversal of 9967288386 is 6838827699.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 804930 + ... + 817218.

It is an arithmetic number, because the mean of its divisors is an integer number (906190866).

Almost surely, 2^9967288386 is an apocalyptic number.

9967288386 is an abundant number, since it is smaller than the sum of its proper divisors (11781292398).

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

9967288386 is an equidigital number, since it uses as much as digits as its factorization.

9967288386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24594 (or 12305 counting only the distinct ones).

The product of its digits is 62705664, while the sum is 66.

The square root of 9967288386 is about 99836.3079545713. The cubic root of 9967288386 is about 2152.0829559986.

Multiplying 9967288386 by its sum of digits (66), we get a square (657841033476 = 811074²).

9967288386 divided by its sum of digits (66) gives a square (151019521 = 12289²).

The spelling of 9967288386 in words is "nine billion, nine hundred sixty-seven million, two hundred eighty-eight thousand, three hundred eighty-six".