13645726452050 has 96 divisors (see below), whose sum is σ = 32735077499520. Its totient is φ = 4106550873600.

The previous prime is 13645726451993. The next prime is 13645726452077. The reversal of 13645726452050 is 5025462754631.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13645726452050.

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 47 ways as a sum of consecutive naturals, for example, 60997739 + ... + 61221038.

It is an arithmetic number, because the mean of its divisors is an integer number (340990390620).

Almost surely, 2^{13645726452050} is an apocalyptic number.

13645726452050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13645726452050 is an abundant number, since it is smaller than the sum of its proper divisors (19089351047470).

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

13645726452050 is a wasteful number, since it uses less digits than its factorization.

13645726452050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122218836 (or 122218831 counting only the distinct ones).

The product of its (nonzero) digits is 6048000, while the sum is 50.

The spelling of 13645726452050 in words is "thirteen trillion, six hundred forty-five billion, seven hundred twenty-six million, four hundred fifty-two thousand, fifty".