12609788340 has 48 divisors (see below), whose sum is σ = 35407487808. Its totient is φ = 3353078784.

The previous prime is 12609788339. The next prime is 12609788351. The reversal of 12609788340 is 4388790621.

It is a self number, because there is not a number n which added to its sum of digits gives 12609788340.

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 15 ways as a sum of consecutive naturals, for example, 276502 + ... + 318861.

It is an arithmetic number, because the mean of its divisors is an integer number (737655996).

Almost surely, 2^12609788340 is an apocalyptic number.

12609788340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12609788340 is an abundant number, since it is smaller than the sum of its proper divisors (22797699468).

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

12609788340 is a wasteful number, since it uses less digits than its factorization.

12609788340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595728 (or 595726 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 48.

The spelling of 12609788340 in words is "twelve billion, six hundred nine million, seven hundred eighty-eight thousand, three hundred forty".