12154413700 has 108 divisors (see below), whose sum is σ = 31221252580. Its totient is φ = 4079750400.

The previous prime is 12154413671. The next prime is 12154413707. The reversal of 12154413700 is 731445121.

It can be written as a sum of positive squares in 6 ways, for example, as 891261316 + 11263152384 = 29854^2 + 106128^2 .

It is not an unprimeable number, because it can be changed into a prime (12154413707) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 118666 + ... + 195934.

Almost surely, 2^12154413700 is an apocalyptic number.

12154413700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12154413700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15610626290).

12154413700 is an abundant number, since it is smaller than the sum of its proper divisors (19066838880).

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

12154413700 is a wasteful number, since it uses less digits than its factorization.

12154413700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77318 (or 77300 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

Adding to 12154413700 its reverse (731445121), we get a palindrome (12885858821).

It can be divided in two parts, 1215441 and 3700, that added together give a triangular number (1219141 = T₁₅₆₁).

The spelling of 12154413700 in words is "twelve billion, one hundred fifty-four million, four hundred thirteen thousand, seven hundred".