2117947151184 has 40 divisors (see below), whose sum is σ = 5471428407360. Its totient is φ = 705974005248.

The previous prime is 2117947151183. The next prime is 2117947151323. The reversal of 2117947151184 is 4811517497112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2117947151183) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4856232 + ... + 5274360.

It is an arithmetic number, because the mean of its divisors is an integer number (136785710184).

Almost surely, 2^{2117947151184} is an apocalyptic number.

2117947151184 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2117947151184 is an abundant number, since it is smaller than the sum of its proper divisors (3353481256176).

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

2117947151184 is a wasteful number, since it uses less digits than its factorization.

2117947151184 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523667 (or 523661 counting only the distinct ones).

The product of its digits is 564480, while the sum is 51.

The spelling of 2117947151184 in words is "two trillion, one hundred seventeen billion, nine hundred forty-seven million, one hundred fifty-one thousand, one hundred eighty-four".