12570518650 has 12 divisors (see below), whose sum is σ = 23381164782. Its totient is φ = 5028207440.

The previous prime is 12570518603. The next prime is 12570518663. The reversal of 12570518650 is 5681507521.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 5762783569 + 6807735081 = 75913^2 + 82509^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 125705137 + ... + 125705236.

Almost surely, 2^12570518650 is an apocalyptic number.

12570518650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12570518650 is a deficient number, since it is larger than the sum of its proper divisors (10810646132).

12570518650 is a wasteful number, since it uses less digits than its factorization.

12570518650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251410385 (or 251410380 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 40.

The spelling of 12570518650 in words is "twelve billion, five hundred seventy million, five hundred eighteen thousand, six hundred fifty".