12849782492550 has 24 divisors (see below), whose sum is σ = 31867460581896. Its totient is φ = 3426608664640.

The previous prime is 12849782492537. The next prime is 12849782492563. The reversal of 12849782492550 is 5529428794821.

It is an interprime number because it is at equal distance from previous prime (12849782492537) and next prime (12849782492563).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42832608159 + ... + 42832608458.

It is an arithmetic number, because the mean of its divisors is an integer number (1327810857579).

Almost surely, 2^{12849782492550} is an apocalyptic number.

12849782492550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12849782492550 is an abundant number, since it is smaller than the sum of its proper divisors (19017678089346).

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

12849782492550 is a wasteful number, since it uses less digits than its factorization.

12849782492550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85665216632 (or 85665216627 counting only the distinct ones).

The product of its (nonzero) digits is 116121600, while the sum is 66.

The spelling of 12849782492550 in words is "twelve trillion, eight hundred forty-nine billion, seven hundred eighty-two million, four hundred ninety-two thousand, five hundred fifty".