12787031008 has 96 divisors (see below), whose sum is σ = 27346636800. Its totient is φ = 5866338816.

The previous prime is 12787030979. The next prime is 12787031011. The reversal of 12787031008 is 80013078721.

It is a congruent number.

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, 2543185 + ... + 2548207.

It is an arithmetic number, because the mean of its divisors is an integer number (284860800).

Almost surely, 2^12787031008 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 12787031008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13673318400).

12787031008 is an abundant number, since it is smaller than the sum of its proper divisors (14559605792).

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

12787031008 is a wasteful number, since it uses less digits than its factorization.

12787031008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5184 (or 5176 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 37.

The spelling of 12787031008 in words is "twelve billion, seven hundred eighty-seven million, thirty-one thousand, eight".