12177786054 has 24 divisors (see below), whose sum is σ = 28331992728. Its totient is φ = 3479367360.

The previous prime is 12177786043. The next prime is 12177786059. The reversal of 12177786054 is 45068777121.

12177786054 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12177785994 and 12177786012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12177786059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20710227 + ... + 20710814.

It is an arithmetic number, because the mean of its divisors is an integer number (1180499697).

Almost surely, 2^12177786054 is an apocalyptic number.

12177786054 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12177786054 is an abundant number, since it is smaller than the sum of its proper divisors (16154206674).

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

12177786054 is a wasteful number, since it uses less digits than its factorization.

12177786054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41421060 (or 41421053 counting only the distinct ones).

The product of its (nonzero) digits is 658560, while the sum is 48.

The spelling of 12177786054 in words is "twelve billion, one hundred seventy-seven million, seven hundred eighty-six thousand, fifty-four".