2185534379 has 8 divisors (see below), whose sum is σ = 2578326528. Its totient is φ = 1812885480.

The previous prime is 2185534369. The next prime is 2185534579. The reversal of 2185534379 is 9734355812.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2185534379 - 2⁴ = 2185534363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2185534369) 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, 5035577 + ... + 5036010.

It is an arithmetic number, because the mean of its divisors is an integer number (322290816).

Almost surely, 2^2185534379 is an apocalyptic number.

2185534379 is a deficient number, since it is larger than the sum of its proper divisors (392792149).

2185534379 is a wasteful number, since it uses less digits than its factorization.

2185534379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10071625.

The product of its digits is 907200, while the sum is 47.

The square root of 2185534379 is about 46749.6992396743. The cubic root of 2185534379 is about 1297.7345908322.

The spelling of 2185534379 in words is "two billion, one hundred eighty-five million, five hundred thirty-four thousand, three hundred seventy-nine".