2159138604750 has 128 divisors (see below), whose sum is σ = 5509215129600. Its totient is φ = 562973024000.

The previous prime is 2159138604653. The next prime is 2159138604761. The reversal of 2159138604750 is 574068319512.

It is a junction number, because it is equal to n+sod(n) for n = 2159138604693 and 2159138604702.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 36948055 + ... + 37006445.

It is an arithmetic number, because the mean of its divisors is an integer number (43040743200).

It is a 1-persistent number, because it is pandigital, but 2⋅2159138604750 = 4318277209500 is not.

Almost surely, 2^{2159138604750} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2159138604750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2754607564800).

2159138604750 is an abundant number, since it is smaller than the sum of its proper divisors (3350076524850).

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

2159138604750 is a wasteful number, since it uses less digits than its factorization.

2159138604750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59507 (or 59497 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 51.

The spelling of 2159138604750 in words is "two trillion, one hundred fifty-nine billion, one hundred thirty-eight million, six hundred four thousand, seven hundred fifty".