12796587650 has 432 divisors, whose sum is σ = 33745911552. Its totient is φ = 3564288000.

The previous prime is 12796587577. The next prime is 12796587689. The reversal of 12796587650 is 5678569721.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

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 215 ways as a sum of consecutive naturals, for example, 241445024 + ... + 241445076.

It is an arithmetic number, because the mean of its divisors is an integer number (78115536).

Almost surely, 2^12796587650 is an apocalyptic number.

12796587650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12796587650 is an abundant number, since it is smaller than the sum of its proper divisors (20949323902).

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

12796587650 is a wasteful number, since it uses less digits than its factorization.

12796587650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155 (or 126 counting only the distinct ones).

The product of its (nonzero) digits is 6350400, while the sum is 56.

The spelling of 12796587650 in words is "twelve billion, seven hundred ninety-six million, five hundred eighty-seven thousand, six hundred fifty".