12884196520 has 32 divisors (see below), whose sum is σ = 31219400520. Its totient is φ = 4757241600.

The previous prime is 12884196497. The next prime is 12884196541. The reversal of 12884196520 is 2569148821.

It can be written as a sum of positive squares in 4 ways, for example, as 5837265604 + 7046930916 = 76402^2 + 83946^2 .

It is a super-2 number, since 2×12884196520² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

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, 12388131 + ... + 12389170.

Almost surely, 2^12884196520 is an apocalyptic number.

12884196520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12884196520 is an abundant number, since it is smaller than the sum of its proper divisors (18335204000).

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

12884196520 is a wasteful number, since it uses less digits than its factorization.

12884196520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24777325 (or 24777321 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 46.

The spelling of 12884196520 in words is "twelve billion, eight hundred eighty-four million, one hundred ninety-six thousand, five hundred twenty".