9864169380 has 72 divisors (see below), whose sum is σ = 32222960952. Its totient is φ = 2428102656.

The previous prime is 9864169363. The next prime is 9864169423. The reversal of 9864169380 is 839614689.

It can be written as a sum of positive squares in 4 ways, for example, as 29877156 + 9834292224 = 5466^2 + 99168^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2105389 + ... + 2110068.

Almost surely, 2^9864169380 is an apocalyptic number.

9864169380 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

9864169380 is an abundant number, since it is smaller than the sum of its proper divisors (22358791572).

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

9864169380 is a wasteful number, since it uses less digits than its factorization.

9864169380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4215485 (or 4215480 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The square root of 9864169380 is about 99318.5248581552. The cubic root of 9864169380 is about 2144.6355812363.

The spelling of 9864169380 in words is "nine billion, eight hundred sixty-four million, one hundred sixty-nine thousand, three hundred eighty".