12875783508 has 108 divisors (see below), whose sum is σ = 38379961620. Its totient is φ = 3628364544.

The previous prime is 12875783507. The next prime is 12875783509. The reversal of 12875783508 is 80538757821.

12875783508 is a `hidden beast` number, since 1 + 2 + 8 + 7 + 57 + 83 + 508 = 666.

It is an interprime number because it is at equal distance from previous prime (12875783507) and next prime (12875783509).

It can be written as a sum of positive squares in 2 ways, for example, as 2493803844 + 10381979664 = 49938^2 + 101892^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12875783507) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 78778 + ... + 178766.

It is an arithmetic number, because the mean of its divisors is an integer number (355370015).

Almost surely, 2^12875783508 is an apocalyptic number.

12875783508 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12875783508, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19189980810).

12875783508 is an abundant number, since it is smaller than the sum of its proper divisors (25504178112).

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

12875783508 is a wasteful number, since it uses less digits than its factorization.

12875783508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100086 (or 100074 counting only the distinct ones).

The product of its (nonzero) digits is 3763200, while the sum is 54.

The spelling of 12875783508 in words is "twelve billion, eight hundred seventy-five million, seven hundred eighty-three thousand, five hundred eight".