12288700420 has 24 divisors (see below), whose sum is σ = 25811685144. Its totient is φ = 4914448896.

The previous prime is 12288700339. The next prime is 12288700447. The reversal of 12288700420 is 2400788221.

It can be written as a sum of positive squares in 4 ways, for example, as 7385339844 + 4903360576 = 85938^2 + 70024^2 .

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, 37164 + ... + 161116.

It is an arithmetic number, because the mean of its divisors is an integer number (1075486881).

Almost surely, 2^12288700420 is an apocalyptic number.

12288700420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12288700420 is an abundant number, since it is smaller than the sum of its proper divisors (13522984724).

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

12288700420 is a wasteful number, since it uses less digits than its factorization.

12288700420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128919 (or 128917 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 34.

The spelling of 12288700420 in words is "twelve billion, two hundred eighty-eight million, seven hundred thousand, four hundred twenty".