2117212376550 has 96 divisors (see below), whose sum is σ = 5347799718912. Its totient is φ = 554234378880.

The previous prime is 2117212376533. The next prime is 2117212376561. The reversal of 2117212376550 is 556732127112.

It is a happy number.

It is a super-3 number, since 3×2117212376550³ (a number of 38 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1413067 + ... + 2496233.

It is an arithmetic number, because the mean of its divisors is an integer number (55706247072).

Almost surely, 2^{2117212376550} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2117212376550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2673899859456).

2117212376550 is an abundant number, since it is smaller than the sum of its proper divisors (3230587342362).

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

2117212376550 is a wasteful number, since it uses less digits than its factorization.

2117212376550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1083422 (or 1083417 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 42.

The spelling of 2117212376550 in words is "two trillion, one hundred seventeen billion, two hundred twelve million, three hundred seventy-six thousand, five hundred fifty".