12607121562 has 128 divisors (see below), whose sum is σ = 30957189120. Its totient is φ = 3352584960.

The previous prime is 12607121561. The next prime is 12607121609. The reversal of 12607121562 is 26512170621.

It is not an unprimeable number, because it can be changed into a prime (12607121561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 22078737 + ... + 22079307.

It is an arithmetic number, because the mean of its divisors is an integer number (241853040).

Almost surely, 2^12607121562 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12607121562, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15478594560).

12607121562 is an abundant number, since it is smaller than the sum of its proper divisors (18350067558).

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

12607121562 is a wasteful number, since it uses less digits than its factorization.

12607121562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741 (or 707 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 33.

The spelling of 12607121562 in words is "twelve billion, six hundred seven million, one hundred twenty-one thousand, five hundred sixty-two".