2129233685240 has 32 divisors (see below), whose sum is σ = 4814850060000. Its totient is φ = 847413604224.

The previous prime is 2129233685171. The next prime is 2129233685279. The reversal of 2129233685240 is 425863329212.

It is a super-2 number, since 2×2129233685240² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133737875 + ... + 133753794.

It is an arithmetic number, because the mean of its divisors is an integer number (150464064375).

Almost surely, 2^{2129233685240} is an apocalyptic number.

2129233685240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2129233685240 is an abundant number, since it is smaller than the sum of its proper divisors (2685616374760).

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

2129233685240 is a wasteful number, since it uses less digits than its factorization.

2129233685240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267491879 (or 267491875 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 47.

The spelling of 2129233685240 in words is "two trillion, one hundred twenty-nine billion, two hundred thirty-three million, six hundred eighty-five thousand, two hundred forty".