2117397725344 has 96 divisors (see below), whose sum is σ = 4608708560064. Its totient is φ = 949550868480.

The previous prime is 2117397725297. The next prime is 2117397725347. The reversal of 2117397725344 is 4435277937112.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2117397725347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21365892 + ... + 21464764.

It is an arithmetic number, because the mean of its divisors is an integer number (48007380834).

Almost surely, 2^{2117397725344} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2117397725344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2304354280032).

2117397725344 is an abundant number, since it is smaller than the sum of its proper divisors (2491310834720).

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

2117397725344 is a wasteful number, since it uses less digits than its factorization.

2117397725344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99710 (or 99702 counting only the distinct ones).

The product of its digits is 8890560, while the sum is 55.

The spelling of 2117397725344 in words is "two trillion, one hundred seventeen billion, three hundred ninety-seven million, seven hundred twenty-five thousand, three hundred forty-four".