12181824510477 has 16 divisors (see below), whose sum is σ = 17198003229120. Its totient is φ = 7643438473472.

The previous prime is 12181824510439. The next prime is 12181824510481. The reversal of 12181824510477 is 77401542818121.

It is a cyclic number.

It is not a de Polignac number, because 12181824510477 - 2¹¹ = 12181824508429 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12181824510077) 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 15 ways as a sum of consecutive naturals, for example, 6257974 + ... + 7970312.

It is an arithmetic number, because the mean of its divisors is an integer number (1074875201820).

Almost surely, 2^{12181824510477} is an apocalyptic number.

12181824510477 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

12181824510477 is a deficient number, since it is larger than the sum of its proper divisors (5016178718643).

12181824510477 is a wasteful number, since it uses less digits than its factorization.

12181824510477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1851852.

The product of its (nonzero) digits is 1003520, while the sum is 51.

The spelling of 12181824510477 in words is "twelve trillion, one hundred eighty-one billion, eight hundred twenty-four million, five hundred ten thousand, four hundred seventy-seven".