2126451600 has 360 divisors, whose sum is σ = 9083710272. Its totient is φ = 448588800.

The previous prime is 2126451577. The next prime is 2126451623. The reversal of 2126451600 is 61546212.

2126451600 is a `hidden beast` number, since 2 + 1 + 2 + 6 + 4 + 51 + 600 = 666.

It is an interprime number because it is at equal distance from previous prime (2126451577) and next prime (2126451623).

It is a tau number, because it is divible by the number of its divisors (360).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 324355 + ... + 330845.

Almost surely, 2^2126451600 is an apocalyptic number.

2126451600 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 2126451600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4541855136).

2126451600 is an abundant number, since it is smaller than the sum of its proper divisors (6957258672).

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

2126451600 is a wasteful number, since it uses less digits than its factorization.

2126451600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6535 (or 6521 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 2126451600 is about 46113.4644111674. The cubic root of 2126451600 is about 1285.9334716262.

Adding to 2126451600 its reverse (61546212), we get a palindrome (2187997812).

The spelling of 2126451600 in words is "two billion, one hundred twenty-six million, four hundred fifty-one thousand, six hundred".