12769948500 has 96 divisors (see below), whose sum is σ = 37289021952. Its totient is φ = 3395894400.

The previous prime is 12769948423. The next prime is 12769948553. The reversal of 12769948500 is 584996721.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 538902 + ... + 562098.

It is an arithmetic number, because the mean of its divisors is an integer number (388427312).

Almost surely, 2^12769948500 is an apocalyptic number.

12769948500 is a gapful number since it is divisible by the number (10) 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 12769948500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18644510976).

12769948500 is an abundant number, since it is smaller than the sum of its proper divisors (24519073452).

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

12769948500 is a wasteful number, since it uses less digits than its factorization.

12769948500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23586 (or 23574 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 51.

The spelling of 12769948500 in words is "twelve billion, seven hundred sixty-nine million, nine hundred forty-eight thousand, five hundred".