12955866028 has 48 divisors (see below), whose sum is σ = 26480885760. Its totient is φ = 5430712896.

The previous prime is 12955866019. The next prime is 12955866037. The reversal of 12955866028 is 82066855921.

It is an interprime number because it is at equal distance from previous prime (12955866019) and next prime (12955866037).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2944326 + ... + 2948722.

It is an arithmetic number, because the mean of its divisors is an integer number (551685120).

Almost surely, 2^12955866028 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12955866028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13240442880).

12955866028 is an abundant number, since it is smaller than the sum of its proper divisors (13525019732).

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

12955866028 is a wasteful number, since it uses less digits than its factorization.

12955866028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6694 (or 6692 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 52.

The spelling of 12955866028 in words is "twelve billion, nine hundred fifty-five million, eight hundred sixty-six thousand, twenty-eight".