2123678250 has 320 divisors, whose sum is σ = 6523545600. Its totient is φ = 513216000.

The previous prime is 2123678239. The next prime is 2123678257. The reversal of 2123678250 is 528763212.

2123678250 is a `hidden beast` number, since 212 + 367 + 82 + 5 + 0 = 666.

It is not an unprimeable number, because it can be changed into a prime (2123678257) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 10671651 + ... + 10671849.

It is an arithmetic number, because the mean of its divisors is an integer number (20386080).

Almost surely, 2^2123678250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2123678250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3261772800).

2123678250 is an abundant number, since it is smaller than the sum of its proper divisors (4399867350).

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

2123678250 is a wasteful number, since it uses less digits than its factorization.

2123678250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276 (or 257 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 2123678250 is about 46083.3836648309. The cubic root of 2123678250 is about 1285.3741838525.

The spelling of 2123678250 in words is "two billion, one hundred twenty-three million, six hundred seventy-eight thousand, two hundred fifty".