12870528722 has 8 divisors (see below), whose sum is σ = 19334481276. Its totient is φ = 6425701632.

The previous prime is 12870528721. The next prime is 12870528751. The reversal of 12870528722 is 22782507821.

It can be written as a sum of positive squares in 2 ways, for example, as 12497227681 + 373301041 = 111791^2 + 19321^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (12870528721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4779683 + ... + 4782374.

Almost surely, 2^12870528722 is an apocalyptic number.

12870528722 is a deficient number, since it is larger than the sum of its proper divisors (6463952554).

12870528722 is an equidigital number, since it uses as much as digits as its factorization.

12870528722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9562732.

The product of its (nonzero) digits is 250880, while the sum is 44.

The spelling of 12870528722 in words is "twelve billion, eight hundred seventy million, five hundred twenty-eight thousand, seven hundred twenty-two".