2138471010858 has 256 divisors, whose sum is σ = 5423069675520. Its totient is φ = 547230587904.

The previous prime is 2138471010847. The next prime is 2138471010881. The reversal of 2138471010858 is 8580101748312.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1956514560 + ... + 1956515652.

It is an arithmetic number, because the mean of its divisors is an integer number (21183865920).

Almost surely, 2^{2138471010858} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2138471010858, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2711534837760).

2138471010858 is an abundant number, since it is smaller than the sum of its proper divisors (3284598664662).

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

2138471010858 is a wasteful number, since it uses less digits than its factorization.

2138471010858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1941.

The product of its (nonzero) digits is 430080, while the sum is 48.

The spelling of 2138471010858 in words is "two trillion, one hundred thirty-eight billion, four hundred seventy-one million, ten thousand, eight hundred fifty-eight".