2143454135400 has 192 divisors, whose sum is σ = 7385072414400. Its totient is φ = 571428000000.

The previous prime is 2143454135399. The next prime is 2143454135453. The reversal of 2143454135400 is 45314543412.

2143454135400 is a `hidden beast` number, since 2 + 1 + 43 + 4 + 541 + 35 + 40 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19931775 + ... + 20039025.

It is an arithmetic number, because the mean of its divisors is an integer number (38463918825).

Almost surely, 2^{2143454135400} is an apocalyptic number.

2143454135400 is a gapful number since it is divisible by the number (20) 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 2143454135400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3692536207200).

2143454135400 is an abundant number, since it is smaller than the sum of its proper divisors (5241618279000).

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

2143454135400 is a wasteful number, since it uses less digits than its factorization.

2143454135400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110977 (or 110962 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

Adding to 2143454135400 its reverse (45314543412), we get a palindrome (2188768678812).

The spelling of 2143454135400 in words is "two trillion, one hundred forty-three billion, four hundred fifty-four million, one hundred thirty-five thousand, four hundred".