12383854551149 has 4 divisors (see below), whose sum is σ = 12810884018460. Its totient is φ = 11956825083840.

The previous prime is 12383854551023. The next prime is 12383854551197. The reversal of 12383854551149 is 94115545838321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5150094661924 + 7233759889225 = 2269382^2 + 2689565^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12383854551149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12383854251149) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 213514733612 + ... + 213514733669.

It is an arithmetic number, because the mean of its divisors is an integer number (3202721004615).

Almost surely, 2^{12383854551149} is an apocalyptic number.

It is an amenable number.

12383854551149 is a deficient number, since it is larger than the sum of its proper divisors (427029467311).

12383854551149 is an equidigital number, since it uses as much as digits as its factorization.

12383854551149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427029467310.

The product of its digits is 20736000, while the sum is 59.

The spelling of 12383854551149 in words is "twelve trillion, three hundred eighty-three billion, eight hundred fifty-four million, five hundred fifty-one thousand, one hundred forty-nine".