2133888237756 has 36 divisors (see below), whose sum is σ = 5884358474904. Its totient is φ = 646632799200.

The previous prime is 2133888237751. The next prime is 2133888237757. The reversal of 2133888237756 is 6577328883312.

2133888237756 is a `hidden beast` number, since 2 + 13 + 388 + 8 + 237 + 7 + 5 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×2133888237756² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2133888237693 and 2133888237702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2133888237751) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2694302935 + ... + 2694303726.

Almost surely, 2^{2133888237756} is an apocalyptic number.

It is an amenable number.

2133888237756 is an abundant number, since it is smaller than the sum of its proper divisors (3750470237148).

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

2133888237756 is a wasteful number, since it uses less digits than its factorization.

2133888237756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5388606682 (or 5388606677 counting only the distinct ones).

The product of its digits is 81285120, while the sum is 63.

The spelling of 2133888237756 in words is "two trillion, one hundred thirty-three billion, eight hundred eighty-eight million, two hundred thirty-seven thousand, seven hundred fifty-six".