2126643600312 has 192 divisors, whose sum is σ = 7187982197760. Its totient is φ = 551828217600.

The previous prime is 2126643600293. The next prime is 2126643600349. The reversal of 2126643600312 is 2130063466212.

2126643600312 is a `hidden beast` number, since 2 + 1 + 2 + 6 + 6 + 43 + 600 + 3 + 1 + 2 = 666.

It is a super-2 number, since 2×2126643600312² (a number of 25 digits) contains 22 as substring.

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

It is a congruent number.

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, 5426737 + ... + 5805407.

It is an arithmetic number, because the mean of its divisors is an integer number (37437407280).

Almost surely, 2^{2126643600312} is an apocalyptic number.

2126643600312 is a gapful number since it is divisible by the number (22) 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 2126643600312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3593991098880).

2126643600312 is an abundant number, since it is smaller than the sum of its proper divisors (5061338597448).

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

2126643600312 is a wasteful number, since it uses less digits than its factorization.

2126643600312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379714 (or 379707 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The spelling of 2126643600312 in words is "two trillion, one hundred twenty-six billion, six hundred forty-three million, six hundred thousand, three hundred twelve".